[PATCH] crypto: sun8i-ss - fix runtime pm imbalance on error

From: Dinghao Liu
Date: Wed May 20 2020 - 04:07:00 EST


pm_runtime_get_sync() increments the runtime PM usage counter even
it 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@xxxxxxxxxx>
---
drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
index 84d52fc3a2da..b1c766bf4483 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
@@ -359,6 +359,7 @@ int sun8i_ss_cipher_init(struct crypto_tfm *tfm)

return 0;
error_pm:
+ pm_runtime_put_sync(op->ss->dev);
crypto_free_sync_skcipher(op->fallback_tfm);
return err;
}
--
2.17.1