From 9d49973b08488f59dd0ada269d9dca210d1fd365 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 25 Jun 2021 10:34:37 +0200 Subject: [PATCH] um: virtio_uml: fix memory leak on init failures commit 7ad28e0df7ee9dbcb793bb88dd81d4d22bb9a10e upstream. If initialization fails, e.g. because the connection failed, we leak the 'vu_dev'. Fix that. Reported by smatch. Fixes: 5d38f324993f ("um: drivers: Add virtio vhost-user driver") Signed-off-by: Johannes Berg Acked-By: Anton Ivanov Signed-off-by: Richard Weinberger Signed-off-by: Greg Kroah-Hartman --- arch/um/drivers/virtio_uml.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/um/drivers/virtio_uml.c b/arch/um/drivers/virtio_uml.c index c17b8e5ec186..d11b3d41c378 100644 --- a/arch/um/drivers/virtio_uml.c +++ b/arch/um/drivers/virtio_uml.c @@ -1113,7 +1113,7 @@ 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); @@ -1132,6 +1132,8 @@ static int virtio_uml_probe(struct platform_device *pdev) error_init: os_close_file(vu_dev->sock); +error_free: + kfree(vu_dev); return rc; }