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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 0854c0efd3
commit 7886394074
1 changed files with 2 additions and 2 deletions
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4
arch/um/drivers/ubd_kern.c
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@ -1097,7 +1097,7 @@ static int __init ubd_init(void)
if (irq_req_buffer == NULL) { if (irq_req_buffer == NULL) {
printk(KERN_ERR "Failed to initialize ubd buffering\n"); printk(KERN_ERR "Failed to initialize ubd buffering\n");
return -1; return -ENOMEM;
} }
io_req_buffer = kmalloc_array(UBD_REQ_BUFFER_SIZE, io_req_buffer = kmalloc_array(UBD_REQ_BUFFER_SIZE,
sizeof(struct io_thread_req *), sizeof(struct io_thread_req *),
@ -1108,7 +1108,7 @@ static int __init ubd_init(void)
if (io_req_buffer == NULL) { if (io_req_buffer == NULL) {
printk(KERN_ERR "Failed to initialize ubd buffering\n"); printk(KERN_ERR "Failed to initialize ubd buffering\n");
return -1; return -ENOMEM;
} }
platform_driver_register(&ubd_driver); platform_driver_register(&ubd_driver);
mutex_lock(&ubd_lock); mutex_lock(&ubd_lock);