From 340479aac697bc73e225c122a9753d4964eeda3f Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sat, 4 Dec 2010 18:17:15 +0000 Subject: [PATCH] drm/i915: Be paranoid and bail on resetting if we can't take the lock. This will declare the machine wedged, but is better than truly wedging the machine. Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/i915_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 1a15b7886b8c..64844e2e9f86 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -440,7 +440,8 @@ int i915_reset(struct drm_device *dev, u8 flags) bool need_display = true; int ret; - mutex_lock(&dev->struct_mutex); + if (!mutex_trylock(&dev->struct_mutex)) + return -EBUSY; i915_gem_reset(dev); -- GitLab