From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>, David Airlie <airlied@linux.ie>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Matthias Brugger <matthias.bgg@gmail.com>,
linux-mediatek@lists.infradead.org,
dri-devel@lists.freedesktop.org, Wen Yang <wen.yang99@zte.com.cn>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4.14 25/42] drm/mediatek: fix possible object reference leak
Date: Thu, 9 May 2019 20:42:14 +0200 [thread overview]
Message-ID: <20190509181257.722424735@linuxfoundation.org> (raw)
In-Reply-To: <20190509181252.616018683@linuxfoundation.org>
[ Upstream commit 2ae2c3316fb77dcf64275d011596b60104c45426 ]
The call to of_parse_phandle returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.
Detected by coccinelle with the following warnings:
drivers/gpu/drm/mediatek/mtk_hdmi.c:1521:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 1509, but without a corresponding object release within this function.
drivers/gpu/drm/mediatek/mtk_hdmi.c:1524:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 1509, but without a corresponding object release within this function.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/mediatek/mtk_hdmi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index a33a1918463de..3c69c73fbd473 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1508,6 +1508,7 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
of_node_put(remote);
hdmi->ddc_adpt = of_find_i2c_adapter_by_node(i2c_np);
+ of_node_put(i2c_np);
if (!hdmi->ddc_adpt) {
dev_err(dev, "Failed to get ddc i2c adapter by node\n");
return -EINVAL;
--
2.20.1
_______________________________________________
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>, Daniel Vetter <daniel@ffwll.ch>,
David Airlie <airlied@linux.ie>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Matthias Brugger <matthias.bgg@gmail.com>,
linux-mediatek@lists.infradead.org,
dri-devel@lists.freedesktop.org,
Philipp Zabel <p.zabel@pengutronix.de>,
CK Hu <ck.hu@mediatek.com>, Wen Yang <wen.yang99@zte.com.cn>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4.14 25/42] drm/mediatek: fix possible object reference leak
Date: Thu, 9 May 2019 20:42:14 +0200 [thread overview]
Message-ID: <20190509181257.722424735@linuxfoundation.org> (raw)
In-Reply-To: <20190509181252.616018683@linuxfoundation.org>
[ Upstream commit 2ae2c3316fb77dcf64275d011596b60104c45426 ]
The call to of_parse_phandle returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.
Detected by coccinelle with the following warnings:
drivers/gpu/drm/mediatek/mtk_hdmi.c:1521:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 1509, but without a corresponding object release within this function.
drivers/gpu/drm/mediatek/mtk_hdmi.c:1524:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 1509, but without a corresponding object release within this function.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/mediatek/mtk_hdmi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index a33a1918463de..3c69c73fbd473 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1508,6 +1508,7 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
of_node_put(remote);
hdmi->ddc_adpt = of_find_i2c_adapter_by_node(i2c_np);
+ of_node_put(i2c_np);
if (!hdmi->ddc_adpt) {
dev_err(dev, "Failed to get ddc i2c adapter by node\n");
return -EINVAL;
--
2.20.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Wen Yang <wen.yang99@zte.com.cn>,
CK Hu <ck.hu@mediatek.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
Matthias Brugger <matthias.bgg@gmail.com>,
dri-devel@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.14 25/42] drm/mediatek: fix possible object reference leak
Date: Thu, 9 May 2019 20:42:14 +0200 [thread overview]
Message-ID: <20190509181257.722424735@linuxfoundation.org> (raw)
In-Reply-To: <20190509181252.616018683@linuxfoundation.org>
[ Upstream commit 2ae2c3316fb77dcf64275d011596b60104c45426 ]
The call to of_parse_phandle returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.
Detected by coccinelle with the following warnings:
drivers/gpu/drm/mediatek/mtk_hdmi.c:1521:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 1509, but without a corresponding object release within this function.
drivers/gpu/drm/mediatek/mtk_hdmi.c:1524:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 1509, but without a corresponding object release within this function.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/mediatek/mtk_hdmi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index a33a1918463de..3c69c73fbd473 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1508,6 +1508,7 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
of_node_put(remote);
hdmi->ddc_adpt = of_find_i2c_adapter_by_node(i2c_np);
+ of_node_put(i2c_np);
if (!hdmi->ddc_adpt) {
dev_err(dev, "Failed to get ddc i2c adapter by node\n");
return -EINVAL;
--
2.20.1
next prev parent reply other threads:[~2019-05-09 18:42 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-09 18:41 [PATCH 4.14 00/42] 4.14.118-stable review Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.14 01/42] scsi: libsas: fix a race condition when smp task timeout Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.14 02/42] Drivers: hv: vmbus: Remove the undesired put_cpu_ptr() in hv_synic_cleanup() Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.14 03/42] ubsan: Fix nasty -Wbuiltin-declaration-mismatch GCC-9 warnings Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.14 04/42] staging: greybus: power_supply: fix prop-descriptor request size Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.14 05/42] ASoC: hdmi-codec: fix S/PDIF DAI Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.14 06/42] ASoC:soc-pcm:fix a codec fixup issue in TDM case Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.14 07/42] ASoC: nau8824: fix the issue of the widget with prefix name Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.14 08/42] ASoC: nau8810: fix the issue of widget with prefixed name Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.14 09/42] ASoC: samsung: odroid: Fix clock configuration for 44100 sample rate Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.14 10/42] ASoC: wm_adsp: Add locking to wm_adsp2_bus_error Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 11/42] ASoC: cs4270: Set auto-increment bit for register writes Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 12/42] IB/hfi1: Eliminate opcode tests on mr deref Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 13/42] MIPS: KGDB: fix kgdb support for SMP platforms Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 14/42] ASoC: tlv320aic32x4: Fix Common Pins Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 15/42] drm/mediatek: Fix an error code in mtk_hdmi_dt_parse_pdata() Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 16/42] perf/x86/intel: Fix handling of wakeup_events for multi-entry PEBS Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 17/42] perf/x86/intel: Initialize TFA MSR Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 18/42] linux/kernel.h: Use parentheses around argument in u64_to_user_ptr() Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 19/42] xtensa: fix initialization of pt_regs::syscall in start_thread Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 20/42] ASoC: rockchip: pdm: fix regmap_ops hang issue Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 21/42] slab: fix a crash by reading /proc/slab_allocators Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 22/42] virtio_pci: fix a NULL pointer reference in vp_del_vqs Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 23/42] RDMA/vmw_pvrdma: Fix memory leak on pvrdma_pci_remove Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 24/42] scsi: csiostor: fix missing data copy in csio_scsi_err_handler() Greg Kroah-Hartman
2019-05-09 18:42 ` Greg Kroah-Hartman [this message]
2019-05-09 18:42 ` [PATCH 4.14 25/42] drm/mediatek: fix possible object reference leak Greg Kroah-Hartman
2019-05-09 18:42 ` Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 26/42] ASoC: Intel: kbl: fix wrong number of channels Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 27/42] virtio-blk: limit number of hw queues by nr_cpu_ids Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 28/42] platform/x86: pmc_atom: Drop __initconst on dmi table Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 29/42] iommu/amd: Set exclusion range correctly Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 30/42] genirq: Prevent use-after-free and work list corruption Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 31/42] usb: dwc3: Fix default lpm_nyet_threshold value Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 32/42] USB: serial: f81232: fix interrupt worker not stop Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 33/42] USB: cdc-acm: fix unthrottle races Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 34/42] usb-storage: Set virt_boundary_mask to avoid SG overflows Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 35/42] intel_th: pci: Add Comet Lake support Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 36/42] scsi: qla2xxx: Fix incorrect region-size setting in optrom SYSFS routines Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 37/42] Bluetooth: hidp: fix buffer overflow Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 38/42] Bluetooth: Align minimum encryption key size for LE and BR/EDR connections Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 39/42] UAS: fix alignment of scatter/gather segments Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 40/42] ASoC: Intel: avoid Oops if DMA setup fails Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 41/42] locking/futex: Allow low-level atomic operations to return -EAGAIN Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.14 42/42] arm64: futex: Bound number of LDXR/STXR loops in FUTEX_WAKE_OP Greg Kroah-Hartman
2019-05-09 23:27 ` [PATCH 4.14 00/42] 4.14.118-stable review kernelci.org bot
2019-05-10 8:45 ` Naresh Kamboju
2019-05-10 10:16 ` Jon Hunter
2019-05-10 10:16 ` Jon Hunter
2019-05-10 13:35 ` Guenter Roeck
2019-05-10 21:26 ` shuah
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