iwlwifi: warn if firmware image doesn't exist
If the firmware image that we attempt to load doesn't
actually exist we have a broken firmware file or other
code not checking things correctly, so warn in such a
case. Also avoid assigning cur_ucode/ucode_loaded then.
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Emmanuel Grumbach <[email protected]>
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index 83fc5ca..70e5297 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -151,13 +151,11 @@
enum iwl_ucode_type old_type = mvm->cur_ucode;
static const u8 alive_cmd[] = { MVM_ALIVE };
- mvm->cur_ucode = ucode_type;
fw = iwl_get_ucode_image(mvm, ucode_type);
-
- mvm->ucode_loaded = false;
-
- if (!fw)
+ if (WARN_ON(!fw))
return -EINVAL;
+ mvm->cur_ucode = ucode_type;
+ mvm->ucode_loaded = false;
iwl_init_notification_wait(&mvm->notif_wait, &alive_wait,
alive_cmd, ARRAY_SIZE(alive_cmd),
