5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alex Deucher <alexander.deucher@xxxxxxx>
[ Upstream commit afe58346d5d3887b3e49ff623d2f2e471f232a8d ]
Should be -EOPNOTSUPP.
Fixes: 5104fdf50d32 ("drm/amdgpu: Fix a null pointer access when the smc_rreg pointer is NULL")
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index d81034023144..48b8b5600402 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -393,7 +393,7 @@ static ssize_t amdgpu_debugfs_regs_smc_read(struct file *f, char __user *buf,
int r;
if (!adev->smc_rreg)
- return -EPERM;
+ return -EOPNOTSUPP;
if (size & 0x3 || *pos & 0x3)
return -EINVAL;
@@ -435,7 +435,7 @@ static ssize_t amdgpu_debugfs_regs_smc_write(struct file *f, const char __user *
int r;
if (!adev->smc_wreg)
- return -EPERM;
+ return -EOPNOTSUPP;
if (size & 0x3 || *pos & 0x3)
return -EINVAL;
--
2.43.0
