devlink: Convert conditional in dl_argv_handle_port() to switch()
Discovered by Phil's covscan. The final return statement is never reached.
This is not inherently clear from looking at the code, so change the
conditional to a switch() statement which should clarify this.
CC: Phil Sutter <phil@nwl.cc>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Phil Sutter <phil@nwl.cc>
diff --git a/devlink/devlink.c b/devlink/devlink.c
index e91dc50..ccca0fb 100644
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -524,19 +524,18 @@
return -EINVAL;
}
slash_count = strslashcount(str);
- if (slash_count != 2 && slash_count != 0) {
+ switch (slash_count) {
+ case 0:
+ return __dl_argv_handle_port_ifname(dl, str, p_bus_name,
+ p_dev_name, p_port_index);
+ case 2:
+ return __dl_argv_handle_port(str, p_bus_name,
+ p_dev_name, p_port_index);
+ default:
pr_err("Wrong port identification string format.\n");
pr_err("Expected \"bus_name/dev_name/port_index\" or \"netdev_ifname\".\n");
return -EINVAL;
}
- if (slash_count == 2) {
- return __dl_argv_handle_port(str, p_bus_name,
- p_dev_name, p_port_index);
- } else if (slash_count == 0) {
- return __dl_argv_handle_port_ifname(dl, str, p_bus_name,
- p_dev_name, p_port_index);
- }
- return 0;
}
static int dl_argv_handle_both(struct dl *dl, char **p_bus_name,