[PATCH] sunrpc: Fix error handling in rpc_sysfs_xprt_switch_add_xprt_store()

[Hongling Zeng]

xprt_create_transport() never returns NULL, only valid pointers or
error pointers. Using IS_ERR_OR_NULL() is incorrect, and PTR_ERR(NULL)
would return 0, which indicates EOF in a sysfs store function.

Fix this by using IS_ERR() instead of IS_ERR_OR_NULL().

Fixes: df210d9b0951 ("sunrpc: Add a sysfs file for adding a new xprt")
Signed-off-by: Hongling Zeng <zenghongling@xxxxxxxxxx>
---
 net/sunrpc/sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sunrpc/sysfs.c b/net/sunrpc/sysfs.c
index a90480f80154..49686bf740e6 100644
--- a/net/sunrpc/sysfs.c
+++ b/net/sunrpc/sysfs.c
@@ -348,7 +348,7 @@ static ssize_t rpc_sysfs_xprt_switch_add_xprt_store(struct kobject *kobj,
 	xprt_create_args.reconnect_timeout = xprt->max_reconnect_timeout;
 
 	new = xprt_create_transport(&xprt_create_args);
-	if (IS_ERR_OR_NULL(new)) {
+	if (IS_ERR(new)) {
 		count = PTR_ERR(new);
 		goto out_put_xprt;
 	}
-- 
2.25.1