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net: qrtr: fix memort leak in qrtr_tun_write_iter 

In qrtr_tun_write_iter the allocated kbuf should be release in case of
error or success return.

v2 Update: Thanks to David Miller for pointing out the release on success
path as well.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Navid Emamdoost 2019-09-11 10:09:02 -05:00 committed by David S. Miller
parent 10cc514f45
commit a21b7f0cff
1 changed files with 4 additions and 1 deletions
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5
net/qrtr/tun.c
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@ -84,11 +84,14 @@ static ssize_t qrtr_tun_write_iter(struct kiocb *iocb, struct iov_iter *from)
if (!kbuf)
return -ENOMEM;
if (!copy_from_iter_full(kbuf, len, from))
if (!copy_from_iter_full(kbuf, len, from)) {
kfree(kbuf);
return -EFAULT;
}
ret = qrtr_endpoint_post(&tun->ep, kbuf, len);
kfree(kbuf);
return ret < 0 ? ret : len;
}