• Matthew Auld's avatar
    drm/i915: fix aliasing_ppgtt leak · cb7f2760
    Matthew Auld authored
    In i915_ggtt_cleanup_hw we need to remember to free aliasing_ppgtt. This
    fixes the following kmemleak message:
    
    unreferenced object 0xffff880213cca000 (size 8192):
      comm "modprobe", pid 1298, jiffies 4294745402 (age 703.930s)
      hex dump (first 32 bytes):
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
      backtrace:
        [<ffffffff817c808e>] kmemleak_alloc+0x4e/0xb0
        [<ffffffff8121f9c2>] kmem_cache_alloc_trace+0x142/0x1d0
        [<ffffffffa06d11ef>] i915_gem_init_ggtt+0x10f/0x210 [i915]
        [<ffffffffa06d71bb>] i915_gem_init+0x5b/0xd0 [i915]
        [<ffffffffa069749a>] i915_driver_load+0x97a/0x1460 [i915]
        [<ffffffffa06a26ef>] i915_pci_probe+0x4f/0x70 [i915]
        [<ffffffff81423015>] local_pci_probe+0x45/0xa0
        [<ffffffff81424463>] pci_device_probe+0x103/0x150
        [<ffffffff81515e6c>] driver_probe_device+0x22c/0x440
        [<ffffffff81516151>] __driver_attach+0xd1/0xf0
        [<ffffffff8151379c>] bus_for_each_dev+0x6c/0xc0
        [<ffffffff8151555e>] driver_attach+0x1e/0x20
        [<ffffffff81514fa3>] bus_add_driver+0x1c3/0x280
        [<ffffffff81516aa0>] driver_register+0x60/0xe0
        [<ffffffff8142297c>] __pci_register_driver+0x4c/0x50
        [<ffffffffa013605b>] 0xffffffffa013605b
    Signed-off-by: default avatarMatthew Auld <matthew.auld@intel.com>
    Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
    Fixes: b18b6bde ("drm/i915/bdw: Free PPGTT struct")
    Cc: stable@vger.kernel.org
    Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
    Link: http://patchwork.freedesktop.org/patch/msgid/1470420280-21417-1-git-send-email-matthew.auld@intel.com
    cb7f2760
i915_gem_gtt.c 95.1 KB