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um: Fix return value in ubd_init()

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[ Upstream commit 31a5990ed2 ]

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

Fixes: f88f0bdfc3 ("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 Greg Kroah-Hartman
parent 900d54bced
commit e98f29bf0b
1 changed files with 2 additions and 2 deletions
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4
arch/um/drivers/ubd_kern.c
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@ -1099,7 +1099,7 @@ 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 *),
@ -1110,7 +1110,7 @@ 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);