X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Ffat%2Finode.c;h=4e0a3dd9d6779a1d9101704d470b1263b194d7d5;hb=1df5a8d004f64b1aa3fb93e0556886ba00ebc979;hp=bf918929e793079ea5c5541a156a0e016726598b;hpb=73f20e58b1d586e9f6d3ddc3aad872829aca7743;p=linux-2.6

diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index bf918929e7..4e0a3dd9d6 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1222,11 +1222,10 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 		brelse(bh);
 		goto out_invalid;
 	}
-	logical_sector_size =
-		le16_to_cpu(get_unaligned((__le16 *)&b->sector_size));
+	logical_sector_size = get_unaligned_le16(&b->sector_size);
 	if (!is_power_of_2(logical_sector_size)
 	    || (logical_sector_size < 512)
-	    || (PAGE_CACHE_SIZE < logical_sector_size)) {
+	    || (logical_sector_size > 4096)) {
 		if (!silent)
 			printk(KERN_ERR "FAT: bogus logical sector size %u\n",
 			       logical_sector_size);
@@ -1322,8 +1321,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	sbi->dir_per_block_bits = ffs(sbi->dir_per_block) - 1;
 
 	sbi->dir_start = sbi->fat_start + sbi->fats * sbi->fat_length;
-	sbi->dir_entries =
-		le16_to_cpu(get_unaligned((__le16 *)&b->dir_entries));
+	sbi->dir_entries = get_unaligned_le16(&b->dir_entries);
 	if (sbi->dir_entries & (sbi->dir_per_block - 1)) {
 		if (!silent)
 			printk(KERN_ERR "FAT: bogus directroy-entries per block"
@@ -1335,7 +1333,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	rootdir_sectors = sbi->dir_entries
 		* sizeof(struct msdos_dir_entry) / sb->s_blocksize;
 	sbi->data_start = sbi->dir_start + rootdir_sectors;
-	total_sectors = le16_to_cpu(get_unaligned((__le16 *)&b->sectors));
+	total_sectors = get_unaligned_le16(&b->sectors);
 	if (total_sectors == 0)
 		total_sectors = le32_to_cpu(b->total_sect);