From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 22 Jan 2019 15:21:21 +0000 (+0100)
Subject: iwlwifi: fw: no need to check return value of debugfs_create functions
X-Git-Tag: v5.1-rc1~178^2~131^2^2~19
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5987dfde6f555248f4b6c83147ec9bc877cd6f4c;p=thirdparty%2Fkernel%2Flinux.git

iwlwifi: fw: no need to check return value of debugfs_create functions

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Intel Linux Wireless <linuxwifi@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
index 3e120dd473057..c1aa4360736b2 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
@@ -173,9 +173,8 @@ static const struct file_operations iwl_dbgfs_##name##_ops = {		\
 	_FWRT_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_fw_runtime)
 
 #define FWRT_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do {	\
-	if (!debugfs_create_file(alias, mode, parent, fwrt,		\
-				 &iwl_dbgfs_##name##_ops))		\
-		goto err;						\
+	debugfs_create_file(alias, mode, parent, fwrt,			\
+			    &iwl_dbgfs_##name##_ops);			\
 	} while (0)
 #define FWRT_DEBUGFS_ADD_FILE(name, parent, mode) \
 	FWRT_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
@@ -321,14 +320,10 @@ out:
 
 FWRT_DEBUGFS_WRITE_FILE_OPS(send_hcmd, 512);
 
-int iwl_fwrt_dbgfs_register(struct iwl_fw_runtime *fwrt,
+void iwl_fwrt_dbgfs_register(struct iwl_fw_runtime *fwrt,
 			    struct dentry *dbgfs_dir)
 {
 	INIT_DELAYED_WORK(&fwrt->timestamp.wk, iwl_fw_timestamp_marker_wk);
 	FWRT_DEBUGFS_ADD_FILE(timestamp_marker, dbgfs_dir, 0200);
 	FWRT_DEBUGFS_ADD_FILE(send_hcmd, dbgfs_dir, 0200);
-	return 0;
-err:
-	IWL_ERR(fwrt, "Can't create the fwrt debugfs directory\n");
-	return -ENOMEM;
 }
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.h b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.h
index 88255035e8ef9..fde40ff88451c 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.h
@@ -63,14 +63,11 @@
 #include "runtime.h"
 
 #ifdef CONFIG_IWLWIFI_DEBUGFS
-int iwl_fwrt_dbgfs_register(struct iwl_fw_runtime *fwrt,
+void iwl_fwrt_dbgfs_register(struct iwl_fw_runtime *fwrt,
 			    struct dentry *dbgfs_dir);
 
 #else
-static inline int iwl_fwrt_dbgfs_register(struct iwl_fw_runtime *fwrt,
-					  struct dentry *dbgfs_dir)
-{
-	return 0;
-}
+static inline void iwl_fwrt_dbgfs_register(struct iwl_fw_runtime *fwrt,
+					   struct dentry *dbgfs_dir) { }
 
 #endif /* CONFIG_IWLWIFI_DEBUGFS */