drm/amdgpu: prevent BO_HANDLES error from being overwritten

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 if there are multiple BO_HANDLES, we stop.

Fixes: fec5f8e ("drm/amdgpu: disallow multiple BO_HANDLES chunks in one submit")
Signed-off-by: Mohammed Anees <[email protected]>
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Pierre-Eric Pelloux-Prayer <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
(cherry picked from commit 40f2cd9)
Cc: [email protected]

Author: donutAnees

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

@@ -265,7 +265,7 @@ 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;
+				goto free_partial_kdata;
 
 			ret = amdgpu_cs_p1_bo_handles(p, p->chunks[i].kdata);
 			if (ret)