From 9fb10671011143d15b6b40d6d5fa9c52c57e9d63 Mon Sep 17 00:00:00 2001
From: Aditya Pakki <pakki001@umn.edu>
Date: Sat, 13 Jun 2020 21:21:22 -0500
Subject: [PATCH] drm/radeon: Fix reference count leaks caused by pm_runtime_get_sync
Git-commit: 9fb10671011143d15b6b40d6d5fa9c52c57e9d63
Patch-mainline: v5.9-rc1
References: git-fixes
On calling pm_runtime_get_sync() the reference count of the device
is incremented. In case of failure, decrement the
reference count before returning the error.
Acked-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/radeon/radeon_display.c | 4 +++-
drivers/gpu/drm/radeon/radeon_drv.c | 4 +++-
drivers/gpu/drm/radeon/radeon_kms.c | 4 +++-
3 files changed, 9 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -631,8 +631,10 @@ radeon_crtc_set_config(struct drm_mode_s
dev = set->crtc->dev;
ret = pm_runtime_get_sync(dev->dev);
- if (ret < 0)
+ if (ret < 0) {
+ pm_runtime_put_autosuspend(dev->dev);
return ret;
+ }
ret = drm_crtc_helper_set_config(set, ctx);
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -542,8 +542,10 @@ long radeon_drm_ioctl(struct file *filp,
long ret;
dev = file_priv->minor->dev;
ret = pm_runtime_get_sync(dev->dev);
- if (ret < 0)
+ if (ret < 0) {
+ pm_runtime_put_autosuspend(dev->dev);
return ret;
+ }
ret = drm_ioctl(filp, cmd, arg);
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -638,8 +638,10 @@ int radeon_driver_open_kms(struct drm_de
file_priv->driver_priv = NULL;
r = pm_runtime_get_sync(dev->dev);
- if (r < 0)
+ if (r < 0) {
+ pm_runtime_put_autosuspend(dev->dev);
return r;
+ }
/* new gpu have virtual address space support */
if (rdev->family >= CHIP_CAYMAN) {