From be636387f81376ff26963987531c89a63faf8a33 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 17 Jul 2012 09:44:49 +0300 Subject: [PATCH] drm/i915: dereferencing an error pointer We need to check that "ctx" is a valid pointer before dereferencing it. Signed-off-by: Dan Carpenter Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_gem_context.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index 873119f2436e..da8b01fb1bf8 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -497,11 +497,13 @@ int i915_gem_context_create_ioctl(struct drm_device *dev, void *data, ctx = create_hw_context(dev, file_priv); mutex_unlock(&dev->struct_mutex); + if (IS_ERR(ctx)) + return PTR_ERR(ctx); args->ctx_id = ctx->id; DRM_DEBUG_DRIVER("HW context %d created\n", args->ctx_id); - return PTR_RET(ctx); + return 0; } int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data, -- 2.20.1