iwlwifi: dvm: 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>

1 files changed, 4 insertions, 40 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/dvm/debugfs.c
index e64cdafc5623..d4b19673b06a 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/debugfs.c
@@ -37,31 +37,8 @@
 
 /* create and remove of files */
 #define DEBUGFS_ADD_FILE(name, parent, mode) do {			\
-	if (!debugfs_create_file(#name, mode, parent, priv,		\
-				 &iwl_dbgfs_##name##_ops))		\
-		goto err;						\
-} while (0)
-
-#define DEBUGFS_ADD_BOOL(name, parent, ptr) do {			\
-	struct dentry *__tmp;						\
-	__tmp = debugfs_create_bool(#name, 0600, parent, ptr);		\
-	if (IS_ERR(__tmp) || !__tmp)					\
-		goto err;						\
-} while (0)
-
-#define DEBUGFS_ADD_X32(name, parent, ptr) do {				\
-	struct dentry *__tmp;						\
-	__tmp = debugfs_create_x32(#name, 0600, parent, ptr);		\
-	if (IS_ERR(__tmp) || !__tmp)					\
-		goto err;						\
-} while (0)
-
-#define DEBUGFS_ADD_U32(name, parent, ptr, mode) do {			\
-	struct dentry *__tmp;						\
-	__tmp = debugfs_create_u32(#name, mode,				\
-				   parent, ptr);			\
-	if (IS_ERR(__tmp) || !__tmp)					\
-		goto err;						\
+	debugfs_create_file(#name, mode, parent, priv,			\
+			    &iwl_dbgfs_##name##_ops);			\
 } while (0)
 
 /* file operation */
@@ -2348,21 +2325,15 @@ DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
  * Create the debugfs files and directories
  *
  */
-int iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
+void iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
 {
 	struct dentry *dir_data, *dir_rf, *dir_debug;
 
 	priv->debugfs_dir = dbgfs_dir;
 
 	dir_data = debugfs_create_dir("data", dbgfs_dir);
-	if (!dir_data)
-		goto err;
 	dir_rf = debugfs_create_dir("rf", dbgfs_dir);
-	if (!dir_rf)
-		goto err;
 	dir_debug = debugfs_create_dir("debug", dbgfs_dir);
-	if (!dir_debug)
-		goto err;
 
 	DEBUGFS_ADD_FILE(nvm, dir_data, 0400);
 	DEBUGFS_ADD_FILE(sram, dir_data, 0600);
@@ -2422,13 +2393,6 @@ int iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
 
 		snprintf(buf, 100, "../../%pd2", dev_dir);
 
-		if (!debugfs_create_symlink("iwlwifi", mac80211_dir, buf))
-			goto err;
+		debugfs_create_symlink("iwlwifi", mac80211_dir, buf);
 	}
-
-	return 0;
-
-err:
-	IWL_ERR(priv, "failed to create the dvm debugfs entries\n");
-	return -ENOMEM;
 }