]> git.baikalelectronics.ru Git - kernel.git/commit
drm/i915: Don't deref context->file_priv ERR_PTR upon reset
authorChris Wilson <chris@chris-wilson.co.uk>
Tue, 22 Nov 2016 14:41:18 +0000 (14:41 +0000)
committerChris Wilson <chris@chris-wilson.co.uk>
Tue, 22 Nov 2016 17:42:17 +0000 (17:42 +0000)
commit52d94bd2310b21a15ccd53a169aa7d66a67b3b53
tree8594c57892e0b5dacad62d3938b19872d5571ce8
parent72450e18be70f19c3c7050e379bee646623d9318
drm/i915: Don't deref context->file_priv ERR_PTR upon reset

When a user context is closed, it's file_priv backpointer is replaced by
ERR_PTR(-EBADF); be careful not to chase this invalid pointer after a
hang and a GPU reset.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Fixes: 9f38963e6c20 ("drm/i915: Add per client max context ban limit")
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161122144121.7379-1-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_gem.c