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Message-Id: <20240306091259.18605-1-duoming@zju.edu.cn>
Date: Wed, 6 Mar 2024 17:12:59 +0800
From: Duoming Zhou <duoming@....edu.cn>
To: linux-kernel@...r.kernel.org
Cc: linux-um@...ts.infradead.org,
richard@....at,
anton.ivanov@...bridgegreys.com,
johannes@...solutions.net,
axboe@...nel.dk,
brauner@...nel.org,
hare@...e.de,
jinpu.wang@...os.com,
Duoming Zhou <duoming@....edu.cn>
Subject: [PATCH] um: Fix return value in ubd_init()
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@....edu.cn>
---
arch/um/drivers/ubd_kern.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 92ee2697ff3..85e33caf62a 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -1098,7 +1098,7 @@ 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 *),
@@ -1109,7 +1109,7 @@ 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);
--
2.17.1
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