iwlwifi: remove debugfs logspam

There really is no point in printing very verbose
error messages when somebody tries to access a
debugfs file before it is ready. Or even worse,
printing verbose messages when memory allocation
fails which *already* prints a huge warning.

Remove all IWL_ERR messages from debugfs.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
index 2a9fb98..e0c93cc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
@@ -1825,10 +1825,9 @@
 
 	bufsz = sizeof(char) * 64 * trans->cfg->base_params->num_of_queues;
 
-	if (!trans_pcie->txq) {
-		IWL_ERR(trans, "txq not ready\n");
+	if (!trans_pcie->txq)
 		return -EAGAIN;
-	}
+
 	buf = kzalloc(bufsz, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
@@ -1889,10 +1888,8 @@
 	ssize_t ret;
 
 	buf = kzalloc(bufsz, GFP_KERNEL);
-	if (!buf) {
-		IWL_ERR(trans, "Can not allocate Buffer\n");
+	if (!buf)
 		return -ENOMEM;
-	}
 
 	pos += scnprintf(buf + pos, bufsz - pos,
 			"Interrupt Statistics Report:\n");