iwinfo: fix iwinfo_hardware() return value if chip id is not found

[openwrt.git] / package / network / utils / iwinfo / src / iwinfo_utils.c

diff --git a/package/network/utils/iwinfo/src/iwinfo_utils.c b/package/network/utils/iwinfo/src/iwinfo_utils.c
index b6760c3..1a831f3 100644 (file)
--- a/package/network/utils/iwinfo/src/iwinfo_utils.c
+++ b/package/network/utils/iwinfo/src/iwinfo_utils.c
@@ -131,7 +131,7 @@ struct iwinfo_hardware_entry * iwinfo_hardware(struct iwinfo_hardware_id *id)
 {
        FILE *db;
        char buf[256] = { 0 };
-       static struct iwinfo_hardware_entry e;
+       static struct iwinfo_hardware_entry e, *rv = NULL;
 
        if (!(db = fopen(IWINFO_HARDWARE_FILE, "r")))
                return NULL;
@@ -161,15 +161,12 @@ struct iwinfo_hardware_entry * iwinfo_hardware(struct iwinfo_hardware_id *id)
                        (e.subsystem_device_id != id->subsystem_device_id))
                        continue;
 
+               rv = &e;
                break;
        }
 
        fclose(db);
-
-       if (e.device_name[0])
-               return &e;
-
-       return NULL;
+       return rv;
 }
 
 int iwinfo_hardware_id_from_mtd(struct iwinfo_hardware_id *id)