5.4-stable review patch. If anyone has any objections, please let me know.
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From: Su Hui suhui@nfschina.com
[ Upstream commit 99655a304e450baaae6b396cb942b9e47659d644 ]
Clang static checker (scan-build) warning: net/tipc/bcast.c:305:4: The expression is an uninitialized value. The computed value will also be garbage [core.uninitialized.Assign] 305 | (*cong_link_cnt)++; | ^~~~~~~~~~~~~~~~~~
tipc_rcast_xmit() will increase cong_link_cnt's value, but cong_link_cnt is uninitialized. Although it won't really cause a problem, it's better to fix it.
Fixes: dca4a17d24ee ("tipc: fix potential hanging after b/rcast changing") Signed-off-by: Su Hui suhui@nfschina.com Reviewed-by: Justin Stitt justinstitt@google.com Link: https://patch.msgid.link/20240912110119.2025503-1-suhui@nfschina.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/tipc/bcast.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index 885ecf6ea65aa..72362fb63d853 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -313,8 +313,8 @@ static int tipc_mcast_send_sync(struct net *net, struct sk_buff *skb, { struct tipc_msg *hdr, *_hdr; struct sk_buff_head tmpq; + u16 cong_link_cnt = 0; struct sk_buff *_skb; - u16 cong_link_cnt; int rc = 0;
/* Is a cluster supporting with new capabilities ? */