From ee65a2abfd5039911274619bd6cd27f11827d444 Mon Sep 17 00:00:00 2001
From: Yongzhi Liu <lyz_cs@pku.edu.cn>
Date: Tue, 18 Jan 2022 15:11:51 -0500
Subject: drm/amdgpu: Add missing pm_runtime_put_autosuspend
Git-commit: 4bd8dd0d61f961e6c13cc118d4ebbdba57f8561f
Patch-mainline: v5.18-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code, thus a matching decrement is needed
on the error handling path to keep the counter balanced.
Signed-off-by: Yongzhi Liu <lyz_cs@pku.edu.cn>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index 9aea1cc5b27e..4b950de9bf66 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -1120,8 +1120,10 @@ static ssize_t amdgpu_debugfs_gfxoff_read(struct file *f, char __user *buf,
return -EINVAL;
r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
- if (r < 0)
+ if (r < 0) {
+ pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
return r;
+ }
while (size) {
uint32_t value;
--
2.38.1