hfsplus: fix overflow in sector calculations in hfsplus_submit_bio

The variable io_size was unsigned int, which caused the wrong sector number to be calculated after aligning it. This then caused mount to fail with big volumes, as backup volume header information was searched from a wrong sector. Signed-off-by: Janne Kalliomäki <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
chewitt · Jun 17, 2012 · a6dc8c0 · a6dc8c0
1 parent 485802a
commit a6dc8c0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
@@ -56,7 +56,7 @@ int hfsplus_submit_bio(struct super_block *sb, sector_t sector,
 	DECLARE_COMPLETION_ONSTACK(wait);
 	struct bio *bio;
 	int ret = 0;
-	unsigned int io_size;
+	u64 io_size;
 	loff_t start;
 	int offset;