- 21 Sep, 2012 32 commits
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H Hartley Sweeten authored
Use a local variable for the iobase of the channel being read. This makes the inw() calls a bit cleaner. Move the masking of the read data to make the value stored in the data array a bit clearer. The comedi core expects insn_read functions to return the number of insn data values read. For this function, the final value of 'i' is correct but change the return to 'insn->n' just to make it clear. Signed-off-by:
H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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H Hartley Sweeten authored
Rename the local variable used to hold the unpacked CR_CHAN() value to help keep the lines < 80 chars. Also, since the insn->chanspec variable is an unsigned int, change the type of the local variable to match. Signed-off-by:
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H Hartley Sweeten authored
This driver only supports one board type and only the "name", "gpct_chans", and "have_dio" information is being used anyway. Just remove the boardinfo to keep the driver simple. Signed-off-by:
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H Hartley Sweeten authored
These comments are not necessary, they are just cut-and-paste from the skel driver. Signed-off-by:
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H Hartley Sweeten authored
This array was used to debug dump the registers. The debug dump has been removed so this array is no longer needed. Signed-off-by:
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H Hartley Sweeten authored
Remove the function trace printk noise. Change the final attach message into a simple dev_info. Signed-off-by:
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H Hartley Sweeten authored
The code after the return in this function can never execute. Just remove it. Signed-off-by:
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H Hartley Sweeten authored
The comedi core validates insn->n before calling this function. Remove the unnecessary check. Signed-off-by:
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H Hartley Sweeten authored
These messages should be removed from the final driver. Signed-off-by:
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H Hartley Sweeten authored
This macro relies on a local variable having a specific name. Signed-off-by:
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H Hartley Sweeten authored
This macro relies on a local variable having a specific name. Signed-off-by:
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H Hartley Sweeten authored
This macro relies on a local variable having a specific name. Signed-off-by:
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H Hartley Sweeten authored
The comedi_insn 'data' pointer is a __user pointer that is passed into the kernel using an ioctl. The comedi core copies this data to kernel space in do_insnlist_ioctl() and then passes that kernel data to the drivers as a separate parameter. The drivers never need to access the data through the insn->data pointer. This fixes a number of sparse warnings about: warning: dereference of noderef expression Signed-off-by:
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Sascha Hauer authored
Signed-off-by:
Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by:
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Philipp Zabel authored
Signed-off-by:
Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by:
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Sascha Hauer authored
This adds a i.MX51/53/6 IPU (Image Processing Unit) KMS driver. The driver has been tested on the i.MX51 babbage board, the i.MX53 LOCO board and the i.MX6q sabrelite board in different clone mode and dual head setups. Signed-off-by:
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Sascha Hauer authored
The IPU is the Image Processing Unit found on i.MX51/53/6 SoCs. It features several units for image processing, this patch adds support for the units needed for Framebuffer support, namely: - Display Controller (dc) - Display Interface (di) - Display Multi Fifo Controller (dmfc) - Display Processor (dp) - Image DMA Controller (idmac) This patch is based on the Freescale driver, but follows a different approach. The Freescale code implements logical idmac channels and the handling of the subunits is hidden in common idmac code pathes in big switch/case statements. This patch instead just provides code and resource management for the different subunits. The user, in this case the framebuffer driver, decides how the different units play together. The IPU has other units missing in this patch: - CMOS Sensor Interface (csi) - Video Deinterlacer (vdi) - Sensor Multi FIFO Controler (smfc) - Image Converter (ic) - Image Rotator (irt) Signed-off-by:
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Sascha Hauer authored
This adds support for parallel displays for i.MX. It consists of a drm encoder/connector pair which eventually passes EDID data from the devicetree to the drm core. Signed-off-by:
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Sascha Hauer authored
This patch adds the i.MX glue stuff between i.MX and drm. Signed-off-by:
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Kevin McKinney authored
This patch removes typedef for _stIM_sfHostNotify, changes the name of the struct from _stIM_sfHostNotify to bcm_stim_sfhostnotify. In addition, any calls to the following typedef "stIM_sfHostNotify" are changed to call the struct directly. Signed-off-by:
Kevin McKinney <klmckinney1@gmail.com> Signed-off-by:
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Wei Yongjun authored
In case of error, the function clk_get() returns ERR_PTR() and never returns NULL pointer. The NULL test in the error handling should be replaced with IS_ERR(). dpatch engine is used to auto generated this patch. (https://github.com/weiyj/dpatch) Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by:
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Devendra Naga authored
the dc_init_descriptor_list actually returns a +ve error return codes, which is abnormal as other functions in kernel return -ve error codes on failure. so replace the return codes of this function with -ve values to make the consistency with the other functions in kernel. Also make the dc_init_descriptor_list static as its never called anywhere except in this file and move the function prototype from the headerfile into the c file as its referred only in this c file. Signed-off-by:
Devendra Naga <devendra.aaru@gmail.com> Signed-off-by:
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Devendra Naga authored
As the driver says that read and writes should not be performed and instead the user to kernel transactions are performed through ioctl interface, remove these functions as they are not required Signed-off-by:
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Devendra Naga authored
the module init and exit functions that are doing usb_register and usb_deregister respectively can be replaced with module_usb_driver code Signed-off-by:
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YAMANE Toshiaki authored
fixed some coccinelle warnings. + drivers/staging/rts_pstor/rtsx.c:397:16-19: ERROR: dev is NULL but dereferenced. drivers/staging/rts_pstor/rtsx.c:447:16-19: ERROR: dev is NULL but dereferenced. drivers/staging/rts_pstor/rtsx.c:358:16-19: ERROR: dev is NULL but dereferenced. Signed-off-by:
YAMANE Toshiaki <yamanetoshi@gmail.com> Signed-off-by:
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Dan Carpenter authored
nArea is used as an offset into the ->rTransDef[] array which has MAX_TRANSAREAS elements. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Adam Buchbinder authored
"Asychronous" is misspelled in some comments. No code changes. Signed-off-by:
Adam Buchbinder <adam.buchbinder@gmail.com> Signed-off-by:
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Adam Buchbinder authored
"Whether" is spelled "wether" in several places. This fixes those that are in the staging tree. Signed-off-by:
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Randy Dunlap authored
Fix kconfig dependencies in silicom. Fixes these build errors: ERROR: "init_net" [drivers/staging/silicom/bypasslib/bypass.ko] undefined! ERROR: "register_netdevice_notifier" [drivers/staging/silicom/bpctl_mod.ko] undefined! ERROR: "unregister_netdevice_notifier" [drivers/staging/silicom/bpctl_mod.ko] undefined! ERROR: "init_net" [drivers/staging/silicom/bpctl_mod.ko] undefined! ERROR: "netdev_info" [drivers/net/mii.ko] undefined! ERROR: "netif_carrier_on" [drivers/net/mii.ko] undefined! ERROR: "netif_carrier_off" [drivers/net/mii.ko] undefined! Signed-off-by:
Randy Dunlap <rdunlap@xenotime.net> Signed-off-by:
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Radhesh Fadnis authored
There was an error in check for the valid temperature in function temp_to_adc_conversion. The temperature value was compared with higher limit for less than condition as well, resulting in returning -EINVAL. Corrected the check condition to properly check for lower and higher temperature limits. Signed-off-by:
Radhesh Fadnis <radhesh.fadnis@ti.com> Signed-off-by:
Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by:
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navin authored
In response to "usbip detach -p [port_number]" user command,vhci_shutdown_connection() gets executed which kills tcp_tx,tcp_rx kernel threads but doesn't set thread pointers to NULL. so, at the time of vhci_hcd removal vhci_shutdown_connection() again tries to kill kernel threads which are already killed. [ 312.220259] BUG: unable to handle kernel NULL pointer dereference at (null) [ 312.220313] IP: [<ffffffff8108186f>] exit_creds+0x1f/0x70 [ 312.220349] PGD 5b7be067 PUD 5b7dc067 PMD 0 [ 312.220388] Oops: 0000 [#1] SMP [ 312.220415] Modules linked in: vhci_hcd(O-) usbip_host(O) usbip_core(O) uas usb_storage joydev parport_pc bnep rfcomm ppdev binfmt_misc snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi arc4 snd_rawmidi snd_seq_midi_event snd_seq ath9k mac80211 ath9k_common ath9k_hw snd_timer snd_seq_device snd ath i915 drm_kms_helper drm psmouse cfg80211 coretemp soundcore lpc_ich i2c_algo_bit snd_page_alloc video intel_ips wmi btusb mac_hid bluetooth ideapad_laptop lp sparse_keymap serio_raw mei microcode parport r8169 [ 312.220862] CPU 0 [ 312.220882] Pid: 2095, comm: usbip_eh Tainted: G O 3.6.0-rc3+ #2 LENOVO 20042 /Base Board Product Name [ 312.220938] RIP: 0010:[<ffffffff8108186f>] [<ffffffff8108186f>] exit_creds+0x1f/0x70 [ 312.220979] RSP: 0018:ffff88004d6ebdb0 EFLAGS: 00010282 [ 312.221008] RAX: 0000000000000000 RBX: ffff880041c4db40 RCX: ffff88005ad52230 [ 312.221041] RDX: 0000000000000034 RSI: 0000000000000286 RDI: 0000000000000000 [ 312.221074] RBP: ffff88004d6ebdc0 R08: ffff88004d6ea000 R09: 0000000000000000 [ 312.221107] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 312.221144] R13: 0000000000000000 R14: ffff88005ad521d8 R15: ffff88004d6ebea0 [ 312.221177] FS: 0000000000000000(0000) GS:ffff880077400000(0000) knlGS:0000000000000000 [ 312.221214] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 312.221241] CR2: 0000000000000000 CR3: 000000005b7b9000 CR4: 00000000000007f0 [ 312.221277] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 312.221309] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 312.221342] Process usbip_eh (pid: 2095, threadinfo ffff88004d6ea000, task ffff88004d44db40) [ 312.221384] Stack: [ 312.221396] ffff88004d6ebdc0 ffff880041c4db40 ffff88004d6ebde0 ffffffff81052aaa [ 312.221442] ffff880041c4db40 0000000000000000 ffff88004d6ebe10 ffffffff8107a148 [ 312.221487] ffff88005ad521f0 ffff88005ad52228 ffff88004d44db40 ffff88005ad521d8 [ 312.221536] Call Trace: [ 312.221556] [<ffffffff81052aaa>] __put_task_struct+0x4a/0x140 [ 312.221587] [<ffffffff8107a148>] kthread_stop+0x108/0x110 [ 312.221616] [<ffffffffa0412569>] vhci_shutdown_connection+0x49/0x2b4 [vhci_hcd] [ 312.221657] [<ffffffffa0139920>] event_handler_loop+0x70/0x140 [usbip_core] [ 312.221692] [<ffffffff8107ad30>] ? add_wait_queue+0x60/0x60 [ 312.221721] [<ffffffffa01398b0>] ? usbip_stop_eh+0x30/0x30 [usbip_core] [ 312.221754] [<ffffffff8107a453>] kthread+0x93/0xa0 [ 312.221784] [<ffffffff81670e84>] kernel_thread_helper+0x4/0x10 [ 312.221814] [<ffffffff8107a3c0>] ? flush_kthread_worker+0xb0/0xb0 [ 312.223589] [<ffffffff81670e80>] ? gs_change+0x13/0x13 [ 312.225360] Code: 0b 0f 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 48 83 ec 08 66 66 66 66 90 48 8b 87 58 04 00 00 48 89 fb 48 8b bf 50 04 00 00 <8b> 00 48 c7 83 50 04 00 00 00 00 00 00 f0 ff 0f 0f 94 c0 84 c0 [ 312.229663] RIP [<ffffffff8108186f>] exit_creds+0x1f/0x70 [ 312.231696] RSP <ffff88004d6ebdb0> [ 312.233648] CR2: 0000000000000000 [ 312.256464] ---[ end trace 1971ce612a167279 ]--- Signed-off-by:
navin patidar <navinp@cdac.in> Acked-by:
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navin authored
stub_shutdown_connection() should set kernel thread pointers to NULL after killing them. so that at the time of usbip_host removal stub_shutdown_connection() doesn't try to kill kernel threads which are already killed. [ 1504.312158] BUG: unable to handle kernel NULL pointer dereference at (null) [ 1504.315833] IP: [<ffffffff8108186f>] exit_creds+0x1f/0x70 [ 1504.317688] PGD 41f1c067 PUD 41d0f067 PMD 0 [ 1504.319611] Oops: 0000 [#2] SMP [ 1504.321480] Modules linked in: vhci_hcd(O) usbip_host(O-) usbip_core(O) uas usb_storage joydev parport_pc bnep rfcomm ppdev binfmt_misc snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi arc4 snd_rawmidi snd_seq_midi_event snd_seq ath9k mac80211 ath9k_common ath9k_hw snd_timer snd_seq_device snd ath i915 drm_kms_helper drm psmouse cfg80211 coretemp soundcore lpc_ich i2c_algo_bit snd_page_alloc video intel_ips wmi btusb mac_hid bluetooth ideapad_laptop lp sparse_keymap serio_raw mei microcode parport r8169 [ 1504.329666] CPU 1 [ 1504.329687] Pid: 2434, comm: usbip_eh Tainted: G D O 3.6.0-rc31+ #2 LENOVO 20042 /Base Board Product Name [ 1504.333502] RIP: 0010:[<ffffffff8108186f>] [<ffffffff8108186f>] exit_creds+0x1f/0x70 [ 1504.335371] RSP: 0018:ffff880041c7fdd0 EFLAGS: 00010282 [ 1504.337226] RAX: 0000000000000000 RBX: ffff880041c2db40 RCX: ffff880041e4ae50 [ 1504.339101] RDX: 0000000000000044 RSI: 0000000000000286 RDI: 0000000000000000 [ 1504.341027] RBP: ffff880041c7fde0 R08: ffff880041c7e000 R09: 0000000000000000 [ 1504.342934] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 1504.344840] R13: 0000000000000000 R14: ffff88004d448000 R15: ffff880041c7fea0 [ 1504.346743] FS: 0000000000000000(0000) GS:ffff880077440000(0000) knlGS:0000000000000000 [ 1504.348671] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 1504.350612] CR2: 0000000000000000 CR3: 0000000041d0d000 CR4: 00000000000007e0 [ 1504.352723] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1504.354734] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 1504.356737] Process usbip_eh (pid: 2434, threadinfo ffff880041c7e000, task ffff88004d448000) [ 1504.358711] Stack: [ 1504.360635] ffff880041c7fde0 ffff880041c2db40 ffff880041c7fe00 ffffffff81052aaa [ 1504.362589] ffff880041c2db40 0000000000000000 ffff880041c7fe30 ffffffff8107a148 [ 1504.364539] ffff880041e4ae10 ffff880041e4ae00 ffff88004d448000 ffff88004d448000 [ 1504.366470] Call Trace: [ 1504.368368] [<ffffffff81052aaa>] __put_task_struct+0x4a/0x140 [ 1504.370307] [<ffffffff8107a148>] kthread_stop+0x108/0x110 [ 1504.370312] [<ffffffffa040da4e>] stub_shutdown_connection+0x3e/0x1b0 [usbip_host] [ 1504.370315] [<ffffffffa03fd920>] event_handler_loop+0x70/0x140 [usbip_core] [ 1504.370318] [<ffffffff8107ad30>] ? add_wait_queue+0x60/0x60 [ 1504.370320] [<ffffffffa03fd8b0>] ? usbip_stop_eh+0x30/0x30 [usbip_core] [ 1504.370322] [<ffffffff8107a453>] kthread+0x93/0xa0 [ 1504.370327] [<ffffffff81670e84>] kernel_thread_helper+0x4/0x10 [ 1504.370330] [<ffffffff8107a3c0>] ? flush_kthread_worker+0xb0/0xb0 [ 1504.370332] [<ffffffff81670e80>] ? gs_change+0x13/0x13 [ 1504.370351] Code: 0b 0f 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 48 83 ec 08 66 66 66 66 90 48 8b 87 58 04 00 00 48 89 fb 48 8b bf 50 04 00 00 <8b> 00 48 c7 83 50 04 00 00 00 00 00 00 f0 ff 0f 0f 94 c0 84 c0 [ 1504.370353] RIP [<ffffffff8108186f>] exit_creds+0x1f/0x70 [ 1504.370353] RSP <ffff880041c7fdd0> [ 1504.370354] CR2: 0000000000000000 [ 1504.401376] ---[ end trace 1971ce612a16727a ]--- Signed-off-by:
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- 19 Sep, 2012 8 commits
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Ian Abbott authored
`parse_insn()` is dereferencing the user-space pointer `insn->data` directly when handling the `INSN_INTTRIG` comedi instruction. It shouldn't be using `insn->data` at all; it should be using the separate `data` pointer passed to the function. Fix it. Cc: stable <stable@vger.kernel.org> Signed-off-by:
Ian Abbott <abbotti@mev.co.uk> Signed-off-by:
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Ian Abbott authored
`insn_rw_emulate_bits()` is used to emulate the `INSN_READ` and `INSN_WRITE` comedi instructions for subdevices that don't have an `insn_read()` or `insn_write()` handler but do have an `insn_bits()` handler. The function fills in a temporary `struct comedi_insn` called `new_insn` to pass to the subdevice's `insn_bits()` handler. In doing so, it sets the `new_insn.data` pointer to point to a temporary data array. This results in a warning from "sparse" because the `data` pointer in `struct comedi_insn` has the `__user` tag. The subdevice's `insn_bits()` handler ignores it anyway as it gets passed a pointer to the temporary data array in a separate parameter. Don't bother setting `new_insn.data`; just leave it set to `NULL` (done by an earlier `memset()`). Signed-off-by:
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Ian Abbott authored
For the COMEDI_DEVCONFIG ioctl, the user application may embed a pointer to firmware data within a designated element (or two elements for 64-bit pointers) of the `options[]` array in the `struct comedi_devconfig`. `do_devconfig_ioctl()` calls `comedi_aux_data()` to extract the pointer value. It needs to be treated as a `__user` pointer so the firmware data can be copied into kernel memory, so cast the result of `comedi_aux_data()` to avoid a "sparse" warning. This is not ideal but `comedi_aux_data()` is called elsewhere in a wholly kernel memory context so we can't just change its return type to include the `__user` tag. Signed-off-by:
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H Hartley Sweeten authored
The 'pci_base' variable is only used to hold the pci_resource_start() value used to ioremap the pci bars. Remove the local variable and just use pci_resource_start() directly in the ioremap. Signed-off-by:
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H Hartley Sweeten authored
Use pci_resource_len() when doing the ioremap instead of assuming the resource size. Signed-off-by:
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H Hartley Sweeten authored
After a successful attach, output a simple dev_info message. Signed-off-by:
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H Hartley Sweeten authored
Use the dev->driver->driver_name instead of the literal string for the reqource name passed to comedi_pci_enable(). Signed-off-by:
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H Hartley Sweeten authored
This driver no longer uses comedi_config to attach so this comment does not apply. Signed-off-by:
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