mwifiex: 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: Amitkumar Karwar <amitkarwar@gmail.com>
Cc: Nishant Sarmukadam <nishants@marvell.com>
Cc: Ganapathi Bhat <gbhat@marvell.com>
Cc: Xinming Hu <huxinming820@gmail.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: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/marvell/mwifiex/debugfs.c

@@ -922,9 +922,8 @@ mwifiex_reset_write(struct file *file,
 }
 
 #define MWIFIEX_DFS_ADD_FILE(name) do {                                 \
-	if (!debugfs_create_file(#name, 0644, priv->dfs_dev_dir,        \
-			priv, &mwifiex_dfs_##name##_fops))              \
-		return;                                                 \
+	debugfs_create_file(#name, 0644, priv->dfs_dev_dir, priv,       \
+			    &mwifiex_dfs_##name##_fops);                \
 } while (0);
 
 #define MWIFIEX_DFS_FILE_OPS(name)                                      \