um: Fix return value in ubd_init()

[ Upstream commit 31a5990ed253a66712d7ddc29c92d297a991fdf2 ]

When kmalloc_array() fails to allocate memory, the ubd_init()
should return -ENOMEM instead of -1. So, fix it.

Fixes: f88f0bdfc32f ("um: UBD Improvements")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Duoming Zhou 2024-03-06 17:12:59 +08:00 committed by Ksawlii
parent a4ea9838b0
commit 7c51d783e4

View file

@ -1158,7 +1158,7 @@ static int __init ubd_init(void)
if (irq_req_buffer == NULL) {
printk(KERN_ERR "Failed to initialize ubd buffering\n");
return -1;
return -ENOMEM;
}
io_req_buffer = kmalloc_array(UBD_REQ_BUFFER_SIZE,
sizeof(struct io_thread_req *),
@ -1169,7 +1169,7 @@ static int __init ubd_init(void)
if (io_req_buffer == NULL) {
printk(KERN_ERR "Failed to initialize ubd buffering\n");
return -1;
return -ENOMEM;
}
platform_driver_register(&ubd_driver);
mutex_lock(&ubd_lock);