Hi,
Le 05/10/2024 à 01:59, Mohammed Anees a écrit :
Before this patch, if multiple BO_HANDLES chunks were submitted,
the error -EINVAL would be correctly set but could be overwritten
by the return value from amdgpu_cs_p1_bo_handles(). This patch
ensures that once an error condition is detected, the function
returns immediately, avoiding the overwriting of the error code.
Signed-off-by: Mohammed Anees <pvmohammedanees2003@xxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 1e475eb01417..543db0df9a31 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -266,8 +266,9 @@ static int amdgpu_cs_pass1(struct amdgpu_cs_parser *p,
/* Only a single BO list is allowed to simplify handling. */
if (p->bo_list)
ret = -EINVAL;
+ else
+ ret = amdgpu_cs_p1_bo_handles(p, p->chunks[i].kdata);
- ret = amdgpu_cs_p1_bo_handles(p, p->chunks[i].kdata);
My bad, I've merged the wrong version of the patch.
That being said, I think it'd be nicer to follow the same pattern as the other checks and do:
if (p->bo_list)
goto free_partial_kdata;
Since "ret" is initialized to -EINVAL already.
Also can you add a reference to the broken commit in the commit message?
Something like:
Fixes: fec5f8e8c6bcf83 ("drm/amdgpu: disallow multiple BO_HANDLES chunks in one submit")
Thanks,
Pierre-Eric
if (ret)
goto free_partial_kdata;
break;
