From: Weston Andros Adamson <dros@xxxxxxxxxxxxxxx> Dont crash with a NULL pointer dereference when req->defer isn't set. This is needed for the localio path. Signed-off-by: Weston Andros Adamson <dros@xxxxxxxxxxxxxxx> Signed-off-by: Lance Shelton <lance.shelton@xxxxxxxxxxxxxxx> Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx> Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx> --- net/sunrpc/cache.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index 95ff74706104..b757b891382c 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -714,6 +714,8 @@ static bool cache_defer_req(struct cache_req *req, struct cache_head *item) return false; } + if (!req->defer) + return false; dreq = req->defer(req); if (dreq == NULL) return false; -- 2.44.0
