iwlagn: remove pointless return variables

A number of places just use a variable to return
it right away, which is useless, so let's remove
the variables there.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 8842411..90f2b64 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -1572,12 +1572,10 @@
 	int pos = 0;
 	char buf[200];
 	const size_t bufsz = sizeof(buf);
-	ssize_t ret;
 
 	if (!priv->bt_enable_flag) {
 		pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
-		ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
-		return ret;
+		return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 	}
 	pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
 		priv->bt_enable_flag);
@@ -1608,8 +1606,7 @@
 		break;
 	}
 
-	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
-	return ret;
+	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
 
 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,