From 7d8d58b23fd01e60ed44d8d8c10b2df86e638faa Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 4 Feb 2009 14:15:10 +0000 Subject: [PATCH] drm/i915: Unlock mutex on i915_gem_fault() error path If we failed to allocate a new fence register we would return VM_FAULT_SIGBUS without relinquishing the lock. Signed-off-by: Chris Wilson Signed-off-by: Eric Anholt Signed-off-by: Dave Airlie --- drivers/gpu/drm/i915/i915_gem.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 6a9e3a875083..1441831fa06e 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -588,8 +588,10 @@ int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) if (obj_priv->fence_reg == I915_FENCE_REG_NONE && obj_priv->tiling_mode != I915_TILING_NONE) { ret = i915_gem_object_get_fence_reg(obj, write); - if (ret != 0) + if (ret) { + mutex_unlock(&dev->struct_mutex); return VM_FAULT_SIGBUS; + } } pfn = ((dev->agp->base + obj_priv->gtt_offset) >> PAGE_SHIFT) +