From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
In the case where is_enable is false and lo_base_addr is non-zero the
variable ret has not been initialized and is being checked for non-zero
and potentially garbage is being returned. Fix this by not returning
ret but instead returning -EINVAL on the zero lo_base_addr case.
Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: a6ac0b44bab9 ("drm/amdgpu: add df perfmon regs and funcs for xgmi")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/df_v3_6.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/df_v3_6.c b/drivers/gpu/drm/amd/amdgpu/df_v3_6.c
index a5c3558869fb..8c09bf994acd 100644
--- a/drivers/gpu/drm/amd/amdgpu/df_v3_6.c
+++ b/drivers/gpu/drm/amd/amdgpu/df_v3_6.c
@@ -398,10 +398,7 @@ static int df_v3_6_start_xgmi_link_cntr(struct amdgpu_device *adev,
NULL);
if (lo_base_addr == 0)
- ret = -EINVAL;
-
- if (ret)
- return ret;
+ return -EINVAL;
lo_val = RREG32_PCIE(lo_base_addr);
--
2.20.1
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