From: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Date: Wed, 11 Nov 2020 02:00:23 +0000 (+0800)
Subject: buffer.c: correct return value when buf is NULL
X-Git-Tag: fuse-3.10.1~3
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f604536b08584bd7c979eed438f0c46ddd1871f0;p=qemu-gpiodev%2Flibfuse.git

buffer.c: correct return value when buf is NULL

In commit d614415a ("buffer.c: check whether buf is
NULL in fuse_bufvec_advance func"), if fuse_bufvec_current
func returns NULL, it returns 1 directly. Actually,
we should return 0 when buf is NULL.

Fixes: d614415a ("buffer.c: check whether buf is NULL in fuse_bufvec_advance func")
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Signed-off-by: Haotian Li <lihaotian9@huawei.com>
---

diff --git a/lib/buffer.c b/lib/buffer.c
index ba07b26..757807a 100644
--- a/lib/buffer.c
+++ b/lib/buffer.c
@@ -267,7 +267,7 @@ static int fuse_bufvec_advance(struct fuse_bufvec *bufv, size_t len)
 	const struct fuse_buf *buf = fuse_bufvec_current(bufv);
 
 	if (!buf)
-		return 1;
+		return 0;
 
 	bufv->off += len;
 	assert(bufv->off <= buf->size);