diff --git a/fs/fat/fat.h b/fs/fat/fat.h
index dc163b8..a768dad 100644
--- a/fs/fat/fat.h
+++ b/fs/fat/fat.h
@@ -325,12 +325,12 @@
 		            struct inode *i2);
 /* fat/misc.c */
 extern void
-__fat_fs_error(struct super_block *s, int report, const char *fmt, ...)
+__fat_fs_error(struct super_block *sb, int report, const char *fmt, ...)
 	__attribute__ ((format (printf, 3, 4))) __cold;
-#define fat_fs_error(s, fmt, args...)		\
-	__fat_fs_error(s, 1, fmt , ## args)
-#define fat_fs_error_ratelimit(s, fmt, args...) \
-	__fat_fs_error(s, __ratelimit(&MSDOS_SB(s)->ratelimit), fmt , ## args)
+#define fat_fs_error(sb, fmt, args...)		\
+	__fat_fs_error(sb, 1, fmt , ## args)
+#define fat_fs_error_ratelimit(sb, fmt, args...) \
+	__fat_fs_error(sb, __ratelimit(&MSDOS_SB(sb)->ratelimit), fmt , ## args)
 extern int fat_clusters_flush(struct super_block *sb);
 extern int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster);
 extern void fat_time_fat2unix(struct msdos_sb_info *sbi, struct timespec *ts,