From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Dinghao Liu <dinghao.liu@zju.edu.cn>,
Alexander Sverdlin <alexander.sverdlin@nokia.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Sasha Levin <sashal@kernel.org>,
linux-crypto@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 05/15] hwrng: ks-sa - Fix runtime PM imbalance on error
Date: Tue, 23 Jun 2020 13:36:20 -0400 [thread overview]
Message-ID: <20200623173630.1355971-5-sashal@kernel.org> (raw)
In-Reply-To: <20200623173630.1355971-1-sashal@kernel.org>
From: Dinghao Liu <dinghao.liu@zju.edu.cn>
[ Upstream commit 95459261c99f1621d90bc628c2a48e60b7cf9a88 ]
pm_runtime_get_sync() increments the runtime PM usage counter even
the call returns an error code. Thus a pairing decrement is needed
on the error handling path to keep the counter balanced.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/char/hw_random/ks-sa-rng.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/char/hw_random/ks-sa-rng.c b/drivers/char/hw_random/ks-sa-rng.c
index 62c6696c1dbd8..b6d7db362b217 100644
--- a/drivers/char/hw_random/ks-sa-rng.c
+++ b/drivers/char/hw_random/ks-sa-rng.c
@@ -216,6 +216,7 @@ static int ks_sa_rng_probe(struct platform_device *pdev)
ret = pm_runtime_get_sync(dev);
if (ret < 0) {
dev_err(dev, "Failed to enable SA power-domain\n");
+ pm_runtime_put_noidle(dev);
pm_runtime_disable(dev);
return ret;
}
--
2.25.1
next prev parent reply other threads:[~2020-06-23 17:36 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 17:36 [PATCH AUTOSEL 4.19 01/15] sata_rcar: handle pm_runtime_get_sync failure cases Sasha Levin
2020-06-23 17:36 ` [PATCH AUTOSEL 4.19 02/15] ata/libata: Fix usage of page address by page_address in ata_scsi_mode_select_xlat function Sasha Levin
2020-06-23 17:36 ` [PATCH AUTOSEL 4.19 03/15] drm/amd/display: Use kfree() to free rgb_user in calculate_user_regamma_ramp() Sasha Levin
2020-06-23 17:36 ` [PATCH AUTOSEL 4.19 04/15] riscv/atomic: Fix sign extension for RV64I Sasha Levin
2020-06-23 17:36 ` Sasha Levin [this message]
2020-06-23 17:36 ` [PATCH AUTOSEL 4.19 06/15] arm64/sve: Eliminate data races on sve_default_vl Sasha Levin
2020-06-23 17:36 ` [PATCH AUTOSEL 4.19 07/15] ibmvnic: Harden device login requests Sasha Levin
2020-06-23 17:36 ` [PATCH AUTOSEL 4.19 08/15] net: alx: fix race condition in alx_remove Sasha Levin
2020-06-23 17:36 ` [PATCH AUTOSEL 4.19 09/15] rocker: fix incorrect error handling in dma_rings_init Sasha Levin
2020-06-23 17:36 ` [PATCH AUTOSEL 4.19 10/15] s390/ptrace: fix setting syscall number Sasha Levin
2020-06-23 17:36 ` [PATCH AUTOSEL 4.19 11/15] s390/vdso: fix vDSO clock_getres() Sasha Levin
2020-06-23 17:36 ` [PATCH AUTOSEL 4.19 12/15] arm64: sve: Fix build failure when ARM64_SVE=y and SYSCTL=n Sasha Levin
2020-06-23 17:36 ` [PATCH AUTOSEL 4.19 13/15] kbuild: improve cc-option to clean up all temporary files Sasha Levin
2020-06-23 17:36 ` [PATCH AUTOSEL 4.19 14/15] blktrace: break out of blktrace setup on concurrent calls Sasha Levin
2020-06-23 17:36 ` [PATCH AUTOSEL 4.19 15/15] RISC-V: Don't allow write+exec only page mapping request in mmap Sasha Levin
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