[PATCH] drm/amdgpu: fix possible UAF in amdgpu_cs_pass1()

[Alex Deucher]

Since the gang_size check is outside of chunk parsing
loop, we need to reset i before we free the chunk data.

Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 040f4cb6ab2d0..fb78a8f475879 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -295,7 +295,7 @@ static int amdgpu_cs_pass1(struct amdgpu_cs_parser *p,
 
        if (!p->gang_size) {
                ret = -EINVAL;
-               goto free_partial_kdata;
+               goto free_all_kdata;
        }
 
        for (i = 0; i < p->gang_size; ++i) {
-- 
2.41.0