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authorGreg Kroah-Hartman <[email protected]>2023-12-04 06:42:16 +0000
committerGreg Kroah-Hartman <[email protected]>2023-12-04 06:42:16 +0000
commit4906f39a1343713a4fb3fe78aecd12eba5257dc0 (patch)
tree2487e32b1e02681683a842f26bbc05e9d1aba308 /drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
parentdevcoredump: Send uevent once devcd is ready (diff)
parentLinux 6.7-rc4 (diff)
downloadkernel-4906f39a1343713a4fb3fe78aecd12eba5257dc0.tar.gz
kernel-4906f39a1343713a4fb3fe78aecd12eba5257dc0.zip
Merge 6.7-rc4 into char-misc-linus
We need 6.7-rc4 in here as we need to revert one of the debugfs changes that came in that release through the wireless tree. Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index a53f436fa9f1..0e61ebdb3f3e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -638,6 +638,9 @@ static ssize_t amdgpu_debugfs_regs_didt_read(struct file *f, char __user *buf,
if (size & 0x3 || *pos & 0x3)
return -EINVAL;
+ if (!adev->didt_rreg)
+ return -EOPNOTSUPP;
+
r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
if (r < 0) {
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
@@ -694,6 +697,9 @@ static ssize_t amdgpu_debugfs_regs_didt_write(struct file *f, const char __user
if (size & 0x3 || *pos & 0x3)
return -EINVAL;
+ if (!adev->didt_wreg)
+ return -EOPNOTSUPP;
+
r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
if (r < 0) {
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);