From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Shixin Liu <liushixin2@huawei.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Sasha Levin <sashal@kernel.org>,
linux-crypto@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 5.4 31/34] crypto: stm32/cryp - Fix PM reference leak on stm32-cryp.c
Date: Sun, 2 May 2021 10:04:31 -0400 [thread overview]
Message-ID: <20210502140434.2719553-31-sashal@kernel.org> (raw)
In-Reply-To: <20210502140434.2719553-1-sashal@kernel.org>
From: Shixin Liu <liushixin2@huawei.com>
[ Upstream commit 747bf30fd944f02f341b5f3bc7d97a13f2ae2fbe ]
pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.
Signed-off-by: Shixin Liu <liushixin2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/stm32/stm32-cryp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index ba5ea6434f9c..9b3511236ba2 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -537,7 +537,7 @@ static int stm32_cryp_hw_init(struct stm32_cryp *cryp)
int ret;
u32 cfg, hw_mode;
- pm_runtime_get_sync(cryp->dev);
+ pm_runtime_resume_and_get(cryp->dev);
/* Disable interrupt */
stm32_cryp_write(cryp, CRYP_IMSCR, 0);
@@ -2054,7 +2054,7 @@ static int stm32_cryp_remove(struct platform_device *pdev)
if (!cryp)
return -ENODEV;
- ret = pm_runtime_get_sync(cryp->dev);
+ ret = pm_runtime_resume_and_get(cryp->dev);
if (ret < 0)
return ret;
--
2.30.2
next prev parent reply other threads:[~2021-05-02 14:07 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-02 14:04 [PATCH AUTOSEL 5.4 01/34] bus: ti-sysc: Probe for l4_wkup and l4_cfg interconnect devices first Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 02/34] staging: wimax/i2400m: fix byte-order issue Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 03/34] spi: ath79: always call chipselect function Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 04/34] spi: ath79: remove spi-master setup and cleanup assignment Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 05/34] crypto: api - check for ERR pointers in crypto_destroy_tfm() Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 06/34] crypto: qat - fix unmap invalid dma address Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 07/34] usb: gadget: uvc: add bInterval checking for HS mode Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 08/34] usb: webcam: Invalid size of Processing Unit Descriptor Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 09/34] genirq/matrix: Prevent allocation counter corruption Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 10/34] usb: gadget: f_uac2: validate input parameters Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 11/34] usb: gadget: f_uac1: " Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 12/34] usb: dwc3: gadget: Ignore EP queue requests during bus reset Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 13/34] usb: xhci: Fix port minor revision Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 14/34] PCI: PM: Do not read power state in pci_enable_device_flags() Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 15/34] x86/build: Propagate $(CLANG_FLAGS) to $(REALMODE_FLAGS) Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 16/34] tee: optee: do not check memref size on return from Secure World Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 17/34] perf/arm_pmu_platform: Fix error handling Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 18/34] usb: xhci-mtk: support quirk to disable usb2 lpm Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 19/34] xhci: check control context is valid before dereferencing it Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 20/34] xhci: fix potential array out of bounds with several interrupters Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 21/34] spi: dln2: Fix reference leak to master Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 22/34] spi: omap-100k: " Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 23/34] spi: qup: fix PM reference leak in spi_qup_remove() Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 24/34] usb: musb: fix PM reference leak in musb_irq_work() Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 25/34] usb: core: hub: Fix PM reference leak in usb_port_resume() Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 26/34] platform/x86: thinkpad_acpi: Correct thermal sensor allocation Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 27/34] tty: n_gsm: check error while registering tty devices Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 28/34] intel_th: Consistency and off-by-one fix Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 29/34] phy: phy-twl4030-usb: Fix possible use-after-free in twl4030_usb_remove() Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 30/34] crypto: stm32/hash - Fix PM reference leak on stm32-hash.c Sasha Levin
2021-05-02 14:04 ` Sasha Levin [this message]
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 32/34] crypto: omap-aes - Fix PM reference leak on omap-aes.c Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 33/34] platform/x86: intel_pmc_core: Don't use global pmcdev in quirks Sasha Levin
2021-05-02 14:04 ` [PATCH AUTOSEL 5.4 34/34] btrfs: convert logic BUG_ON()'s in replace_path to ASSERT()'s Sasha Levin
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