1. 29 Apr, 2011 6 commits
    • Malcolm Priestley's avatar
      [media] Missing frontend config for LME DM04/QQBOX · 2b5cb549
      Malcolm Priestley authored
      Forgot to add the DVB_STV0299/DVB_PLL to config
      Signed-off-by: default avatarMalcolm Priestley <tvboxspy@gmail.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
      2b5cb549
    • Hussam Al-Tayeb's avatar
      [media] rc_core: avoid kernel oops when rmmod saa7134 · 88fda561
      Hussam Al-Tayeb authored
      The following is a patch to avoid a kernel oops when running rmmod
      saa7134 on kernel 2.6.27.1. The change is as suggested by mchehab on
      irc.freenode.org
      Signed-off-by: default avatarHussam Al-Tayeb <ht990332@gmail.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
      88fda561
    • Jarod Wilson's avatar
      [media] imon: add conditional locking in change_protocol · 23ef710e
      Jarod Wilson authored
      The imon_ir_change_protocol function gets called two different ways, one
      way is from rc_register_device, for initial protocol selection/setup,
      and the other is via a userspace-initiated protocol change request,
      either by direct sysfs prodding or by something like ir-keytable.
      
      In the rc_register_device case, the imon context lock is already held,
      but when initiated from userspace, it is not, so we must acquire it,
      prior to calling send_packet, which requires that the lock is held.
      
      Without this change, there's an easily reproduceable deadlock when
      another function calls send_packet (such as either of the display write
      fops) after a userspace-initiated change_protocol.
      
      With a lock-debugging-enabled kernel, I was getting this:
      
      [   15.014153] =====================================
      [   15.015048] [ BUG: bad unlock balance detected! ]
      [   15.015048] -------------------------------------
      [   15.015048] ir-keytable/773 is trying to release lock (&ictx->lock) at:
      [   15.015048] [<ffffffff814c6297>] mutex_unlock+0xe/0x10
      [   15.015048] but there are no more locks to release!
      [   15.015048]
      [   15.015048] other info that might help us debug this:
      [   15.015048] 2 locks held by ir-keytable/773:
      [   15.015048]  #0:  (&buffer->mutex){+.+.+.}, at: [<ffffffff8119d400>] sysfs_write_file+0x3c/0x144
      [   15.015048]  #1:  (s_active#87){.+.+.+}, at: [<ffffffff8119d4ab>] sysfs_write_file+0xe7/0x144
      [   15.015048]
      [   15.015048] stack backtrace:
      [   15.015048] Pid: 773, comm: ir-keytable Not tainted 2.6.38.4-20.fc15.x86_64.debug #1
      [   15.015048] Call Trace:
      [   15.015048]  [<ffffffff81089715>] ? print_unlock_inbalance_bug+0xca/0xd5
      [   15.015048]  [<ffffffff8108b35c>] ? lock_release_non_nested+0xc1/0x263
      [   15.015048]  [<ffffffff814c6297>] ? mutex_unlock+0xe/0x10
      [   15.015048]  [<ffffffff814c6297>] ? mutex_unlock+0xe/0x10
      [   15.015048]  [<ffffffff8108b67b>] ? lock_release+0x17d/0x1a4
      [   15.015048]  [<ffffffff814c6229>] ? __mutex_unlock_slowpath+0xc5/0x125
      [   15.015048]  [<ffffffff814c6297>] ? mutex_unlock+0xe/0x10
      [   15.015048]  [<ffffffffa02964b6>] ? send_packet+0x1c9/0x264 [imon]
      [   15.015048]  [<ffffffff8108b376>] ? lock_release_non_nested+0xdb/0x263
      [   15.015048]  [<ffffffffa0296731>] ? imon_ir_change_protocol+0x126/0x15e [imon]
      [   15.015048]  [<ffffffffa024a334>] ? store_protocols+0x1c3/0x286 [rc_core]
      [   15.015048]  [<ffffffff81326e4e>] ? dev_attr_store+0x20/0x22
      [   15.015048]  [<ffffffff8119d4cc>] ? sysfs_write_file+0x108/0x144
      ...
      
      The original report that led to the investigation was the following:
      
      [ 1679.457305] INFO: task LCDd:8460 blocked for more than 120 seconds.
      [ 1679.457307] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
      [ 1679.457309] LCDd            D ffff88010fcd89c8     0  8460      1 0x00000000
      [ 1679.457312]  ffff8800d5a03b48 0000000000000082 0000000000000000 ffff8800d5a03fd8
      [ 1679.457314]  00000000012dcd30 fffffffffffffffd ffff8800d5a03fd8 ffff88010fcd86f0
      [ 1679.457316]  ffff8800d5a03fd8 ffff8800d5a03fd8 ffff88010fcd89d0 ffff8800d5a03fd8
      [ 1679.457319] Call Trace:
      [ 1679.457324]  [<ffffffff810ff1a5>] ? zone_statistics+0x75/0x90
      [ 1679.457327]  [<ffffffff810ea907>] ? get_page_from_freelist+0x3c7/0x820
      [ 1679.457330]  [<ffffffff813b0a49>] __mutex_lock_slowpath+0x139/0x320
      [ 1679.457335]  [<ffffffff813b0c41>] mutex_lock+0x11/0x30
      [ 1679.457338]  [<ffffffffa0d54216>] display_open+0x66/0x130 [imon]
      [ 1679.457345]  [<ffffffffa01d06c0>] usb_open+0x180/0x310 [usbcore]
      [ 1679.457349]  [<ffffffff81143b3b>] chrdev_open+0x1bb/0x2d0
      [ 1679.457350]  [<ffffffff8113d93d>] __dentry_open+0x10d/0x370
      [ 1679.457352]  [<ffffffff81143980>] ? chrdev_open+0x0/0x2d0
      ...
      
      Bump the driver version here so its easier to tell if people have this
      locking fix or not, and also make locking during probe easier to follow.
      
      CC: stable@kernel.org
      Reported-by: default avatarBenjamin Hodgetts <ben@xnode.org>
      Signed-off-by: default avatarJarod Wilson <jarod@redhat.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
      23ef710e
    • Jarod Wilson's avatar
      b3003933
    • Jarod Wilson's avatar
    • Jarod Wilson's avatar
      [media] mceusb: add Dell transceiver ID · e296e127
      Jarod Wilson authored
      Add device ID for a Dell-branded, Philips device ID transceiver reported
      by an OpenELEC user on their forums.
      
      http://openelec.tv/forum/27-hardware-support/5622-adding-support-for-an-ir-receiver--dell-branded--#5622Signed-off-by: default avatarJarod Wilson <jarod@redhat.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
      e296e127
  2. 19 Apr, 2011 18 commits
  3. 17 Apr, 2011 8 commits
  4. 13 Apr, 2011 8 commits