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Commit 9b24001d authored by Zhaolei's avatar Zhaolei Committed by John W. Linville
Browse files

Fix debugfs_create_bool's error checking method for wireless/iwlwifi/ 



debugfs_create_bool() returns NULL if an error occurs, returns -ENODEV
when debugfs is not enabled in the kernel.

Signed-off-by: default avatarZhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent ac9440a4

drivers/net/wireless/iwlwifi/iwl-debugfs.c

+2 −1
Original line number Diff line number Diff line
@@ -58,7 +58,8 @@ 
#define DEBUGFS_ADD_BOOL(name, parent, ptr) do {                        \

	dbgfs->dbgfs_##parent##_files.file_##name =                     \

	debugfs_create_bool(#name, 0644, dbgfs->dir_##parent, ptr);     \

	if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name))          \

	if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name)		\

			|| !dbgfs->dbgfs_##parent##_files.file_##name)	\

		goto err;                                               \

} while (0)