From: Shixin Liu Date: Thu, 8 Apr 2021 07:18:36 +0000 (+0800) Subject: crypto: stm32/cryp - Fix PM reference leak on stm32-cryp.c X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=747bf30fd944f02f341b5f3bc7d97a13f2ae2fbe;p=linux.git crypto: stm32/cryp - Fix PM reference leak on stm32-cryp.c 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 Signed-off-by: Herbert Xu --- diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c index 2a4793176c713..7389a0536ff02 100644 --- a/drivers/crypto/stm32/stm32-cryp.c +++ b/drivers/crypto/stm32/stm32-cryp.c @@ -542,7 +542,7 @@ 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); @@ -2043,7 +2043,7 @@ 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;