summaryrefslogtreecommitdiff
path: root/drivers/nfc
diff options
context:
space:
mode:
authorShang XiaoJing <shangxiaojing@huawei.com>2022-10-27 22:03:31 +0800
committerDavid S. Miller <davem@davemloft.net>2022-10-30 21:43:26 +0000
commit3a146b7e3099dc7cf3114f627d9b79291e2d2203 (patch)
tree28e335ba7e134ad15be2cc81c22be1891c08a041 /drivers/nfc
parent7bf1ed6aff0f70434bd0cdd45495e83f1dffb551 (diff)
nfc: s3fwrn5: Fix potential memory leak in s3fwrn5_nci_send()
s3fwrn5_nci_send() will call s3fwrn5_i2c_write() or s3fwrn82_uart_write(), and free the skb if write() failed. However, even if the write() run succeeds, the skb will not be freed in write(). As the result, the skb will memleak. s3fwrn5_nci_send() should also free the skb when write() succeeds. Fixes: c04c674fadeb ("nfc: s3fwrn5: Add driver for Samsung S3FWRN5 NFC Chip") Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/nfc')
-rw-r--r--drivers/nfc/s3fwrn5/core.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/nfc/s3fwrn5/core.c b/drivers/nfc/s3fwrn5/core.c
index 1c412007fabb..0270e05b68df 100644
--- a/drivers/nfc/s3fwrn5/core.c
+++ b/drivers/nfc/s3fwrn5/core.c
@@ -110,11 +110,15 @@ static int s3fwrn5_nci_send(struct nci_dev *ndev, struct sk_buff *skb)
}
ret = s3fwrn5_write(info, skb);
- if (ret < 0)
+ if (ret < 0) {
kfree_skb(skb);
+ mutex_unlock(&info->mutex);
+ return ret;
+ }
+ consume_skb(skb);
mutex_unlock(&info->mutex);
- return ret;
+ return 0;
}
static int s3fwrn5_nci_post_setup(struct nci_dev *ndev)