linux-kernel - [PATCH] virtio_fs.c: add check kmalloc return

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Message-Id: <20220924141728.3343-1-liujing@cmss.chinamobile.com>
Date:   Sat, 24 Sep 2022 10:17:28 -0400
From:   liujing <liujing@...s.chinamobile.com>
To:     vgoyal@...hat.com
Cc:     stefanha@...hat.com, miklos@...redi.hu,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        liujing <liujing@...s.chinamobile.com>
Subject: [PATCH] virtio_fs.c: add check kmalloc return

Signed-off-by: liujing <liujing@...s.chinamobile.com>
---
 fs/fuse/virtio_fs.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index 4d8d4f16c727..07334c9c2883 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c
@@ -989,6 +989,10 @@ __releases(fiq->lock)
 
 	/* Allocate a buffer for the request */
 	forget = kmalloc(sizeof(*forget), GFP_NOFS | __GFP_NOFAIL);
+
+	if (forget == NULL)
+		return -ENOMEM;
+
 	req = &forget->req;
 
 	req->ih = (struct fuse_in_header){
-- 
2.18.2