[PATCH] fix affs/super.c

Mounting a non-affs filesystem as affs crashes the kernel.
The reason is the
	sbi = kmalloc(sizeof(struct affs_sb_info), GFP_KERNEL);
	memset(sbi, 0, sizeof(*AFFS_SB));
where the second sizeof is 1, so that sbi is not zeroed at all.

Also, avoid a warning for printk of sector_t in amigaffs.h.

fs/affs/super.c

@@ -298,7 +298,8 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
 	if (!sbi)
 		return -ENOMEM;
 	sb->s_fs_info = sbi;
-	memset(sbi, 0, sizeof(*AFFS_SB));
+	memset(sbi, 0, sizeof(struct affs_sb_info));
+
 	init_MUTEX(&sbi->s_bmlock);
 
 	if (!parse_options(data,&uid,&gid,&i,&reserved,&root_block,

include/linux/amigaffs.h

@@ -73,7 +73,7 @@ static inline void
 affs_brelse(struct buffer_head *bh)
 {
 	if (bh)
-		pr_debug("affs_brelse: %ld\n", bh->b_blocknr);
+		pr_debug("affs_brelse: %lld\n", (long long) bh->b_blocknr);
 	brelse(bh);
 }