From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Sylwester Nawrocki <s.nawrocki@samsung.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Sasha Levin <sashal@kernel.org>,
linux-samsung-soc@vger.kernel.org, linux-media@vger.kernel.org
Subject: [PATCH AUTOSEL 5.12 07/80] media: s5p: fix pm_runtime_get_sync() usage count
Date: Sun, 4 Jul 2021 19:05:03 -0400 [thread overview]
Message-ID: <20210704230616.1489200-7-sashal@kernel.org> (raw)
In-Reply-To: <20210704230616.1489200-1-sashal@kernel.org>
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit fdc34e82c0f968ac4c157bd3d8c299ebc24c9c63 ]
The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.
While here, check if the PM runtime error was caught at
s5p_cec_adap_enable().
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/cec/platform/s5p/s5p_cec.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/media/cec/platform/s5p/s5p_cec.c b/drivers/media/cec/platform/s5p/s5p_cec.c
index 2a3e7ffefe0a..2250c1cbc64e 100644
--- a/drivers/media/cec/platform/s5p/s5p_cec.c
+++ b/drivers/media/cec/platform/s5p/s5p_cec.c
@@ -35,10 +35,13 @@ MODULE_PARM_DESC(debug, "debug level (0-2)");
static int s5p_cec_adap_enable(struct cec_adapter *adap, bool enable)
{
+ int ret;
struct s5p_cec_dev *cec = cec_get_drvdata(adap);
if (enable) {
- pm_runtime_get_sync(cec->dev);
+ ret = pm_runtime_resume_and_get(cec->dev);
+ if (ret < 0)
+ return ret;
s5p_cec_reset(cec);
--
2.30.2
next prev parent reply other threads:[~2021-07-04 23:07 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-04 23:04 [PATCH AUTOSEL 5.12 01/80] spi: Make of_register_spi_device also set the fwnode Sasha Levin
2021-07-04 23:04 ` [PATCH AUTOSEL 5.12 02/80] Add a reference to ucounts for each cred Sasha Levin
2021-07-04 23:04 ` [PATCH AUTOSEL 5.12 03/80] staging: media: rkvdec: fix pm_runtime_get_sync() usage count Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 04/80] media: i2c: imx334: fix the pm runtime get logic Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 05/80] media: marvel-ccic: fix some issues when getting pm_runtime Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 06/80] media: mdk-mdp: fix pm_runtime_get_sync() usage count Sasha Levin
2021-07-04 23:05 ` Sasha Levin [this message]
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 08/80] media: am437x: " Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 09/80] media: sh_vou: " Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 10/80] media: mtk-vcodec: fix PM runtime get logic Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 11/80] media: s5p-jpeg: fix pm_runtime_get_sync() usage count Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 12/80] media: sunxi: " Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 13/80] media: sti/bdisp: " Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 14/80] media: exynos4-is: " Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 15/80] media: exynos-gsc: " Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 16/80] spi: spi-loopback-test: Fix 'tx_buf' might be 'rx_buf' Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 17/80] spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages() Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 18/80] spi: omap-100k: Fix the length judgment problem Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 19/80] regulator: uniphier: Add missing MODULE_DEVICE_TABLE Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 20/80] sched/core: Initialize the idle task with preemption disabled Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 21/80] hwrng: exynos - Fix runtime PM imbalance on error Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 22/80] crypto: nx - add missing MODULE_DEVICE_TABLE Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 23/80] regmap-i2c: Set regmap max raw r/w from quirks Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 24/80] media: sti: fix obj-$(config) targets Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 25/80] sched: Make the idle task quack like a per-CPU kthread Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 26/80] media: cpia2: fix memory leak in cpia2_usb_probe Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 27/80] media: cobalt: fix race condition in setting HPD Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 28/80] media: hevc: Fix dependent slice segment flags Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 29/80] media: pvrusb2: fix warning in pvr2_i2c_core_done Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 30/80] media: imx: imx7_mipi_csis: Fix logging of only error event counters Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 31/80] crypto: qat - check return code of qat_hal_rd_rel_reg() Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 32/80] crypto: qat - remove unused macro in FW loader Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 33/80] crypto: qce: skcipher: Fix incorrect sg count for dma transfers Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 34/80] arm64: perf: Convert snprintf to sysfs_emit Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 35/80] sched/fair: Fix ascii art by relpacing tabs Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 36/80] ima: Don't remove security.ima if file must not be appraised Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 37/80] media: i2c: ov2659: Use clk_{prepare_enable,disable_unprepare}() to set xvclk on/off Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 38/80] media: bt878: do not schedule tasklet when it is not setup Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 39/80] media: em28xx: Fix possible memory leak of em28xx struct Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 40/80] media: hantro: Fix .buf_prepare Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 41/80] media: cedrus: " Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 42/80] media: v4l2-core: Avoid the dangling pointer in v4l2_fh_release Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 43/80] media: bt8xx: Fix a missing check bug in bt878_probe Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 44/80] media: st-hva: Fix potential NULL pointer dereferences Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 45/80] crypto: hisilicon/sec - fixup 3des minimum key size declaration Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 46/80] Makefile: fix GDB warning with CONFIG_RELR Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 47/80] media: dvd_usb: memory leak in cinergyt2_fe_attach Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 48/80] memstick: rtsx_usb_ms: fix UAF Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 49/80] mmc: sdhci-sprd: use sdhci_sprd_writew Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 50/80] mmc: via-sdmmc: add a check against NULL pointer dereference Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 51/80] mmc: sdhci-of-aspeed: Turn down a phase correction warning Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 52/80] spi: meson-spicc: fix a wrong goto jump for avoiding memory leak Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 53/80] spi: meson-spicc: fix memory leak in meson_spicc_probe Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 54/80] regulator: mt6315: Fix checking return value of devm_regmap_init_spmi_ext Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 55/80] crypto: shash - avoid comparing pointers to exported functions under CFI Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 56/80] media: dvb_net: avoid speculation from net slot Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 57/80] media: dvbdev: fix error logic at dvb_register_device() Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 58/80] media: siano: fix device register error path Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 59/80] media: imx-csi: Skip first few frames from a BT.656 source Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 60/80] hwmon: (max31790) Report correct current pwm duty cycles Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 61/80] hwmon: (max31790) Fix pwmX_enable attributes Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 62/80] sched/fair: Take thermal pressure into account while estimating energy Sasha Levin
2021-07-05 8:13 ` Lukasz Luba
2021-07-05 10:12 ` Sasha Levin
2021-07-04 23:05 ` [PATCH AUTOSEL 5.12 63/80] drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe() Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 64/80] KVM: arm64: Restore PMU configuration on first run Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 65/80] KVM: PPC: Book3S HV: Fix TLB management on SMT8 POWER9 and POWER10 processors Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 66/80] btrfs: fix error handling in __btrfs_update_delayed_inode Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 67/80] btrfs: abort transaction if we fail to update the delayed inode Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 68/80] btrfs: always abort the transaction if we abort a trans handle Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 69/80] btrfs: sysfs: fix format string for some discard stats Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 70/80] btrfs: scrub: fix subpage repair error caused by hard coded PAGE_SIZE Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 71/80] btrfs: make Private2 lifespan more consistent Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 72/80] btrfs: fix the filemap_range_has_page() call in btrfs_punch_hole_lock_range() Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 73/80] btrfs: don't clear page extent mapped if we're not invalidating the full page Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 74/80] btrfs: disable build on platforms having page size 256K Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 75/80] locking/lockdep: Fix the dep path printing for backwards BFS Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 76/80] lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage() Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 77/80] KVM: s390: get rid of register asm usage Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 78/80] regulator: mt6358: Fix vdram2 .vsel_mask Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 79/80] regulator: da9052: Ensure enough delay time for .set_voltage_time_sel Sasha Levin
2021-07-04 23:06 ` [PATCH AUTOSEL 5.12 80/80] media: Fix Media Controller API config checks Sasha Levin
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