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authorZheng Yongjun <zhengyongjun3@huawei.com>2022-03-17 13:16:13 +0000
committerHerbert Xu <herbert@gondor.apana.org.au>2022-03-25 16:21:05 +1200
commite9a36feecee0ee5845f2e0656f50f9942dd0bed3 (patch)
tree18358bac15de12fca95982db6be2c252597349e1 /drivers/crypto/stm32
parentc8bd296cca3434b13b28b074eaeb78a23284de77 (diff)
crypto: stm32 - fix reference leak in stm32_crc_remove
pm_runtime_get_sync() will increment pm usage counter even it failed. Forgetting to call pm_runtime_put_noidle will result in reference leak in stm32_crc_remove, so we should fix it. Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/stm32')
-rw-r--r--drivers/crypto/stm32/stm32-crc32.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/crypto/stm32/stm32-crc32.c b/drivers/crypto/stm32/stm32-crc32.c
index be1bf39a317d..90a920e7f664 100644
--- a/drivers/crypto/stm32/stm32-crc32.c
+++ b/drivers/crypto/stm32/stm32-crc32.c
@@ -384,8 +384,10 @@ static int stm32_crc_remove(struct platform_device *pdev)
struct stm32_crc *crc = platform_get_drvdata(pdev);
int ret = pm_runtime_get_sync(crc->dev);
- if (ret < 0)
+ if (ret < 0) {
+ pm_runtime_put_noidle(crc->dev);
return ret;
+ }
spin_lock(&crc_list.lock);
list_del(&crc->list);