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| author | Wang Hai <wanghai38@huawei.com> | 2020-11-10 22:46:14 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-18 18:26:27 +0100 |
| commit | f44b8662a581d1e09b0af47fba1eac33c1a655ab (patch) | |
| tree | f47acc8c0db62ee74bb20d624d7343f7c75b88ce | |
| parent | 02317044a80418b4bf4513fa710e030c655a2a6f (diff) | |
| download | linux-f44b8662a581d1e09b0af47fba1eac33c1a655ab.tar.gz linux-f44b8662a581d1e09b0af47fba1eac33c1a655ab.tar.bz2 linux-f44b8662a581d1e09b0af47fba1eac33c1a655ab.zip | |
cosa: Add missing kfree in error path of cosa_write
[ Upstream commit 52755b66ddcef2e897778fac5656df18817b59ab ]
If memory allocation for 'kbuf' succeed, cosa_write() doesn't have a
corresponding kfree() in exception handling. Thus add kfree() for this
function implementation.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Acked-by: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Link: https://lore.kernel.org/r/20201110144614.43194-1-wanghai38@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/wan/cosa.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c index b87fe0a01c69..3c02473a20f2 100644 --- a/drivers/net/wan/cosa.c +++ b/drivers/net/wan/cosa.c @@ -903,6 +903,7 @@ static ssize_t cosa_write(struct file *file, chan->tx_status = 1; spin_unlock_irqrestore(&cosa->lock, flags); up(&chan->wsem); + kfree(kbuf); return -ERESTARTSYS; } } |