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* [PATCH] drm/i915: Fix error pointer dereference in i915_gem_do_execbuffer()
@ 2021-11-16 11:48 ` Dan Carpenter
  0 siblings, 0 replies; 10+ messages in thread
From: Dan Carpenter @ 2021-11-16 11:48 UTC (permalink / raw)
  To: Jani Nikula, Matthew Brost
  Cc: Jason Ekstrand, David Airlie, kernel-janitors, intel-gfx,
	dri-devel, Chris Wilson, Matthew Auld, Rodrigo Vivi

Originally "out_fence" was set using out_fence = sync_file_create() but
which returns NULL, but now it is set with out_fence = eb_requests_create()
which returns error pointers.  The error path needs to be modified to
avoid an Oops in the "goto err_request;" path.

Fixes: 544460c33821 ("drm/i915: Multi-BB execbuf")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 4d7da07442f2..9b24d9b5ade1 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -3277,6 +3277,7 @@ i915_gem_do_execbuffer(struct drm_device *dev,
 	out_fence = eb_requests_create(&eb, in_fence, out_fence_fd);
 	if (IS_ERR(out_fence)) {
 		err = PTR_ERR(out_fence);
+		out_fence = NULL;
 		if (eb.requests[0])
 			goto err_request;
 		else
-- 
2.20.1


^ permalink raw reply related	[flat|nested] 10+ messages in thread
* [PATCH] drm/i915: Fix error pointer dereference in i915_gem_do_execbuffer()
@ 2021-12-02  4:48 Matthew Brost
  0 siblings, 0 replies; 10+ messages in thread
From: Matthew Brost @ 2021-12-02  4:48 UTC (permalink / raw)
  To: intel-gfx, dri-devel

From: Dan Carpenter <dan.carpenter@oracle.com>

Originally "out_fence" was set using out_fence = sync_file_create() but
which returns NULL, but now it is set with out_fence = eb_requests_create()
which returns error pointers.  The error path needs to be modified to
avoid an Oops in the "goto err_request;" path.

Fixes: 544460c33821 ("drm/i915: Multi-BB execbuf")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 9f7c6ecadb90..6db588b9a30e 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -3288,6 +3288,7 @@ i915_gem_do_execbuffer(struct drm_device *dev,
 	out_fence = eb_requests_create(&eb, in_fence, out_fence_fd);
 	if (IS_ERR(out_fence)) {
 		err = PTR_ERR(out_fence);
+		out_fence = NULL;
 		if (eb.requests[0])
 			goto err_request;
 		else
-- 
2.33.1


^ permalink raw reply related	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2021-12-02  4:54 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-11-16 11:48 [PATCH] drm/i915: Fix error pointer dereference in i915_gem_do_execbuffer() Dan Carpenter
2021-11-16 11:48 ` Dan Carpenter
2021-11-16 11:48 ` [Intel-gfx] " Dan Carpenter
2021-11-16 13:13 ` [Intel-gfx] ✗ Fi.CI.BAT: failure for " Patchwork
2021-11-16 16:37 ` [PATCH] " Matthew Brost
2021-11-16 16:37   ` Matthew Brost
2021-11-16 16:37   ` [Intel-gfx] " Matthew Brost
2021-11-16 18:10 ` [Intel-gfx] ✗ Fi.CI.BAT: failure for drm/i915: Fix error pointer dereference in i915_gem_do_execbuffer() (rev2) Patchwork
2021-11-17  3:34 ` [Intel-gfx] ✗ Fi.CI.BAT: failure for drm/i915: Fix error pointer dereference in i915_gem_do_execbuffer() (rev3) Patchwork
2021-12-02  4:48 [PATCH] drm/i915: Fix error pointer dereference in i915_gem_do_execbuffer() Matthew Brost

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