FAILED: Patch "dm-verity: correctly handle dm_bufio_client_create() failure" failed to apply to 6.1-stable tree

The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

Thanks,
Sasha

------------------ original commit in Linus's tree ------------------

From 119f4f04186fa4f33ee6bd39af145cdaff1ff17f Mon Sep 17 00:00:00 2001
From: Eric Biggers <[email protected]>
Date: Fri, 19 Dec 2025 11:29:08 -0800
Subject: [PATCH] dm-verity: correctly handle dm_bufio_client_create() failure

If either of the calls to dm_bufio_client_create() in verity_fec_ctr() fails, then dm_bufio_client_destroy() is later called with an ERR_PTR() argument. That causes a crash. Fix this.

---
 drivers/md/dm-verity-fec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

index ef9970b889aaf..7583607a8aa62 100644
@@ -501,9 +501,9 @@ void verity_fec_dtr(struct dm_verity *v)
 	mempool_exit(&f->output_pool);
 	kmem_cache_destroy(f->cache);
 
-	if (f->data_bufio)
+	if (!IS_ERR_OR_NULL(f->data_bufio))
 		dm_bufio_client_destroy(f->data_bufio);
-	if (f->bufio)
+	if (!IS_ERR_OR_NULL(f->bufio))
 		dm_bufio_client_destroy(f->bufio);
 
 	if (f->dev)

2.51.0