From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 15 Sep 2013 08:37:17 +0000 (+0300)
Subject: iwlwifi: don't WARN on host commands sent when firmware is dead
X-Git-Tag: accepted/tizen/common/20141203.182822~1266^2~20^2^2~8^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8ca95995e64f5d270889badb3e449dca91106a2b;p=platform%2Fkernel%2Flinux-arm64.git

iwlwifi: don't WARN on host commands sent when firmware is dead

This triggers automatic bug reports and add no valuable
information. Print a simple error instead and drop the
host command.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index dd57a36..80b4750 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -601,8 +601,10 @@ static inline int iwl_trans_send_cmd(struct iwl_trans *trans,
 {
 	int ret;
 
-	WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE,
-		  "%s bad state = %d", __func__, trans->state);
+	if (trans->state != IWL_TRANS_FW_ALIVE) {
+		IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
+		return -EIO;
+	}
 
 	if (!(cmd->flags & CMD_ASYNC))
 		lock_map_acquire_read(&trans->sync_cmd_lockdep_map);