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um: virtio_uml: fix memory leak on init failures

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commit 7ad28e0df7 upstream.

If initialization fails, e.g. because the connection failed,
we leak the 'vu_dev'. Fix that. Reported by smatch.

Fixes: 5d38f32499 ("um: drivers: Add virtio vhost-user driver")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johannes Berg 2021-06-25 10:34:37 +02:00 • committed by Greg Kroah-Hartman
parent dc25d3beba
commit 6909fa41fb
1 changed files with 3 additions and 1 deletions
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4
arch/um/drivers/virtio_uml.c
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@ -1139,7 +1139,7 @@ static int virtio_uml_probe(struct platform_device *pdev)
rc = os_connect_socket(pdata->socket_path);
} while (rc == -EINTR);
if (rc < 0)
return rc;
goto error_free;
vu_dev->sock = rc;
spin_lock_init(&vu_dev->sock_lock);
@ -1160,6 +1160,8 @@ static int virtio_uml_probe(struct platform_device *pdev)
error_init:
os_close_file(vu_dev->sock);
error_free:
kfree(vu_dev);
return rc;
}