This is a note to let you know that I've just added the patch titled
um: Fix return value in ubd_init()
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
um-fix-return-value-in-ubd_init.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 18d9e4d5c8dcba9cb64dfd18a75080a3f4e502cd
Author: Duoming Zhou <duoming@xxxxxxxxxx>
Date: Wed Mar 6 17:12:59 2024 +0800
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@xxxxxxxxxx>
Reviewed-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Signed-off-by: Richard Weinberger <richard@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index fefd343412c79..b3a4cc5a2091f 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -1097,7 +1097,7 @@ 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 *),
@@ -1108,7 +1108,7 @@ 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);
