ssb: Fix error return code in ssb_bus_scan()

Fix to return -EINVAL from the error handling case instead of 0, as done
elsewhere in this function.

Fixes: 61e115a ("[SSB]: add Sonics Silicon Backplane bus support")
Reported-by: Hulk Robot <[email protected]>
Signed-off-by: Zhen Lei <[email protected]>
Acked-by: Michael Büsch <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: Zhen Lei

drivers/ssb/scan.c

@@ -325,6 +325,7 @@ int ssb_bus_scan(struct ssb_bus *bus,
 	if (bus->nr_devices > ARRAY_SIZE(bus->devices)) {
 		pr_err("More than %d ssb cores found (%d)\n",
 		       SSB_MAX_NR_CORES, bus->nr_devices);
+		err = -EINVAL;
 		goto err_unmap;
 	}
 	if (bus->bustype == SSB_BUSTYPE_SSB) {