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| author | Arnd Bergmann <arnd@arndb.de> | 2019-06-17 14:51:45 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-06-17 11:02:03 -0500 |
| commit | e1a2f2d23a989c928c5c5b3d4827daf2f01dd9df (patch) | |
| tree | 4027612589817c2279c6aa69eb96a0cd531a94a3 /ipc/sem.c | |
| parent | b6bb56ac7d16887f8ef95403b18d346b5cfae8cf (diff) | |
drm/amdgpu: fix error handling in df_v3_6_pmc_start
When df_v3_6_pmc_get_ctrl_settings() fails for some reason, we
store uninitialized data in a register, as gcc points out:
drivers/gpu/drm/amd/amdgpu/df_v3_6.c: In function 'df_v3_6_pmc_start':
drivers/gpu/drm/amd/amdgpu/amdgpu.h:1012:29: error: 'lo_val' may be used uninitialized in this function [-Werror=maybe-uninitialized]
#define WREG32_PCIE(reg, v) adev->pcie_wreg(adev, (reg), (v))
^~~~
drivers/gpu/drm/amd/amdgpu/df_v3_6.c:334:39: note: 'lo_val' was declared here
uint32_t lo_base_addr, hi_base_addr, lo_val, hi_val;
^~~~~~
Make it return a proper error code that we can catch in the caller.
Fixes: 992af942a6cf ("drm/amdgpu: add df perfmon regs and funcs for xgmi")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'ipc/sem.c')
0 files changed, 0 insertions, 0 deletions