drm/amdgpu: potential uninitialized variable in amdgpu_vce_ring_parse_cs()

commit 40a9960b046290939b56ce8e51f365258f27f264 upstream.

We shifted some code around in commit 9cca0b8e5df0 ("drm/amdgpu: move
amdgpu_cs_sysvm_access_required into find_mapping") and now my static
checker complains that "r" might not be initialized at the end of the
function.  I've reviewed the code, and that seems possible, but it's
also possible I may have missed something.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
index 743a12df6971bd7457f2aaaeaecb899bf2cbed6a..3bb2b9b5ef9c5e8d1038dd572699c77b7bc974c8 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
@@ -648,7 +648,7 @@ int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx)
        uint32_t allocated = 0;
        uint32_t tmp, handle = 0;
        uint32_t *size = &tmp;
-       int i, r, idx = 0;
+       int i, r = 0, idx = 0;
 
        r = amdgpu_cs_sysvm_access_required(p);
        if (r)