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authorDominique Martinet <asmadeus@codewreck.org>2023-05-03 10:49:27 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-09-23 11:46:52 +0300
commit62d2f86c3af8d09c061997cbbd1ca899e92bf101 (patch)
tree26ced2ac9ef916e191de8c9a977b8c128b97de92
parent2da066a76c2f6e74af975a46aeb718fbfba42f6d (diff)
downloadlinux-62d2f86c3af8d09c061997cbbd1ca899e92bf101.tar.xz
9p: virtio: make sure 'offs' is initialized in zc_request
[ Upstream commit 4a73edab69d3a6623f03817fe950a2d9585f80e4 ] Similarly to the previous patch: offs can be used in handle_rerrors without initializing on small payloads; in this case handle_rerrors will not use it because of the size check, but it doesn't hurt to make sure it is zero to please scan-build. This fixes the following warning: net/9p/trans_virtio.c:539:3: warning: 3rd function call argument is an uninitialized value [core.CallAndMessage] handle_rerror(req, in_hdr_len, offs, in_pages); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> Signed-off-by: Eric Van Hensbergen <ericvh@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--net/9p/trans_virtio.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index c6a46e8e9eda..25f5caa57289 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -401,7 +401,7 @@ p9_virtio_zc_request(struct p9_client *client, struct p9_req_t *req,
struct page **in_pages = NULL, **out_pages = NULL;
struct virtio_chan *chan = client->trans;
struct scatterlist *sgs[4];
- size_t offs;
+ size_t offs = 0;
int need_drop = 0;
p9_debug(P9_DEBUG_TRANS, "virtio request\n");