From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
commit 063b1f21cc9be07291a1f5e227436f353c6d1695 upstream.
After allocation 'dip' is tested instead of 'dip->csums'. Fix it.
Fixes: 642c5d34da53 ("btrfs: allocate the btrfs_dio_private as part of the iomap dio bio")
CC: stable@xxxxxxxxxxxxxxx # 5.19+
Reviewed-by: Nikolay Borisov <nborisov@xxxxxxxx>
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/btrfs/inode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8142,7 +8142,7 @@ static void btrfs_submit_direct(const st
*/
status = BLK_STS_RESOURCE;
dip->csums = kcalloc(nr_sectors, fs_info->csum_size, GFP_NOFS);
- if (!dip)
+ if (!dip->csums)
goto out_err;
status = btrfs_lookup_bio_sums(inode, dio_bio, dip->csums);
