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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
	dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org,
	Aditya Pakki <pakki001@umn.edu>,
	Alex Deucher <alexander.deucher@amd.com>,
	Evan Quan <evan.quan@amd.com>
Subject: [PATCH AUTOSEL 4.14 04/22] drm/radeon: Fix reference count leaks caused by pm_runtime_get_sync
Date: Mon, 10 Aug 2020 15:13:26 -0400	[thread overview]
Message-ID: <20200810191345.3795166-4-sashal@kernel.org> (raw)
In-Reply-To: <20200810191345.3795166-1-sashal@kernel.org>

From: Aditya Pakki <pakki001@umn.edu>

[ Upstream commit 9fb10671011143d15b6b40d6d5fa9c52c57e9d63 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 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(-)

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index d86110cdf0852..b2334349799d1 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -627,8 +627,10 @@ radeon_crtc_set_config(struct drm_mode_set *set,
 	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);
 
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index f6908e2f9e55a..41e8abd099784 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -496,8 +496,10 @@ 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);
 	
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index dfee8f7d94ae5..2e28cf8118404 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -659,8 +659,10 @@ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 	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) {
-- 
2.25.1

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

WARNING: multiple messages have this Message-ID (diff)
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
	dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org,
	Aditya Pakki <pakki001@umn.edu>,
	Alex Deucher <alexander.deucher@amd.com>,
	Evan Quan <evan.quan@amd.com>
Subject: [PATCH AUTOSEL 4.14 04/22] drm/radeon: Fix reference count leaks caused by pm_runtime_get_sync
Date: Mon, 10 Aug 2020 15:13:26 -0400	[thread overview]
Message-ID: <20200810191345.3795166-4-sashal@kernel.org> (raw)
In-Reply-To: <20200810191345.3795166-1-sashal@kernel.org>

From: Aditya Pakki <pakki001@umn.edu>

[ Upstream commit 9fb10671011143d15b6b40d6d5fa9c52c57e9d63 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 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(-)

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index d86110cdf0852..b2334349799d1 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -627,8 +627,10 @@ radeon_crtc_set_config(struct drm_mode_set *set,
 	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);
 
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index f6908e2f9e55a..41e8abd099784 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -496,8 +496,10 @@ 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);
 	
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index dfee8f7d94ae5..2e28cf8118404 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -659,8 +659,10 @@ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 	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) {
-- 
2.25.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

WARNING: multiple messages have this Message-ID (diff)
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Aditya Pakki <pakki001@umn.edu>, Evan Quan <evan.quan@amd.com>,
	Alex Deucher <alexander.deucher@amd.com>,
	Sasha Levin <sashal@kernel.org>,
	amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: [PATCH AUTOSEL 4.14 04/22] drm/radeon: Fix reference count leaks caused by pm_runtime_get_sync
Date: Mon, 10 Aug 2020 15:13:26 -0400	[thread overview]
Message-ID: <20200810191345.3795166-4-sashal@kernel.org> (raw)
In-Reply-To: <20200810191345.3795166-1-sashal@kernel.org>

From: Aditya Pakki <pakki001@umn.edu>

[ Upstream commit 9fb10671011143d15b6b40d6d5fa9c52c57e9d63 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 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(-)

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index d86110cdf0852..b2334349799d1 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -627,8 +627,10 @@ radeon_crtc_set_config(struct drm_mode_set *set,
 	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);
 
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index f6908e2f9e55a..41e8abd099784 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -496,8 +496,10 @@ 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);
 	
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index dfee8f7d94ae5..2e28cf8118404 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -659,8 +659,10 @@ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 	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) {
-- 
2.25.1


  parent reply	other threads:[~2020-08-10 19:13 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-10 19:13 [PATCH AUTOSEL 4.14 01/22] drm/tilcdc: fix leak & null ref in panel_connector_get_modes Sasha Levin
2020-08-10 19:13 ` Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 02/22] Bluetooth: add a mutex lock to avoid UAF in do_enale_set Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 03/22] fs/btrfs: Add cond_resched() for try_release_extent_mapping() stalls Sasha Levin
2020-08-10 19:13 ` Sasha Levin [this message]
2020-08-10 19:13   ` [PATCH AUTOSEL 4.14 04/22] drm/radeon: Fix reference count leaks caused by pm_runtime_get_sync Sasha Levin
2020-08-10 19:13   ` Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 05/22] video: fbdev: neofb: fix memory leak in neo_scan_monitor() Sasha Levin
2020-08-10 19:13   ` Sasha Levin
2020-08-10 19:13   ` Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 06/22] md-cluster: fix wild pointer of unlock_all_bitmaps() Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 07/22] arm64: dts: hisilicon: hikey: fixes to comply with adi, adv7533 DT binding Sasha Levin
2020-08-10 19:13   ` Sasha Levin
     [not found] ` <20200810191345.3795166-1-sashal-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2020-08-10 19:13   ` [PATCH AUTOSEL 4.14 08/22] drm/nouveau: fix multiple instances of reference count leaks Sasha Levin
2020-08-10 19:13     ` Sasha Levin
2020-08-10 19:13     ` Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 09/22] drm/debugfs: fix plain echo to connector "force" attribute Sasha Levin
2020-08-10 19:13   ` Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 10/22] irqchip/irq-mtk-sysirq: Replace spinlock with raw_spinlock Sasha Levin
2020-08-10 19:13   ` Sasha Levin
2020-08-10 19:13   ` Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 11/22] mm/mmap.c: Add cond_resched() for exit_mmap() CPU stalls Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 12/22] brcmfmac: To fix Bss Info flag definition Bug Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 13/22] brcmfmac: set state of hanger slot to FREE when flushing PSQ Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 14/22] iwlegacy: Check the return value of pcie_capability_read_*() Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 15/22] gpu: host1x: debug: Fix multiple channels emitting messages simultaneously Sasha Levin
2020-08-10 19:13   ` Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 16/22] usb: gadget: net2280: fix memory leak on probe error handling paths Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 17/22] bdc: Fix bug causing crash after multiple disconnects Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 18/22] usb: bdc: Halt controller on suspend Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 19/22] dyndbg: fix a BUG_ON in ddebug_describe_flags Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 20/22] dyndbg: prefer declarative init in caller, to memset in callee Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 21/22] bcache: fix super block seq numbers comparision in register_cache_set() Sasha Levin
2020-08-10 19:13 ` [PATCH AUTOSEL 4.14 22/22] ACPICA: Do not increment operation_region reference counts for field units Sasha Levin

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