'dip' is tested instead of 'dip->csums'.
Fix it.

Fixes: 642c5d34da53 ("btrfs: allocate the btrfs_dio_private as part of the iomap dio bio")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 fs/btrfs/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 966cc050cdbb..3bbd2dc6282f 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8078,7 +8078,7 @@ static void btrfs_submit_direct(const struct iomap_iter *iter,
 		 */
 		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);
-- 
2.34.1

On Sun, Oct 30, 2022 at 08:35:28AM +0100, Christophe JAILLET wrote:
> 'dip' is tested instead of 'dip->csums'.
> Fix it.
> 
> Fixes: 642c5d34da53 ("btrfs: allocate the btrfs_dio_private as part of the iomap dio bio")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

Added to misc-next, thanks.

On 30.10.22 г. 9:35 ч., Christophe JAILLET wrote:
> 'dip' is tested instead of 'dip->csums'.
> Fix it.
> 
> Fixes: 642c5d34da53 ("btrfs: allocate the btrfs_dio_private as part of the iomap dio bio")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>


Reviewed-by: Nikolay Borisov <nborisov@suse.com>

> ---
>   fs/btrfs/inode.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
> index 966cc050cdbb..3bbd2dc6282f 100644
> --- a/fs/btrfs/inode.c
> +++ b/fs/btrfs/inode.c
> @@ -8078,7 +8078,7 @@ static void btrfs_submit_direct(const struct iomap_iter *iter,
>   		 */
>   		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);