From: Wang Hai <[email protected]>

[ 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 <[email protected]>
Signed-off-by: Wang Hai <[email protected]>
Acked-by: Jan "Yenya" Kasprzak <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
 drivers/net/wan/cosa.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index 6ea16260ec760..1a1f2d1069fb8 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -902,6 +902,7 @@ 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;
                }
        }
-- 
2.27.0



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