From 5d8c081193d4fdfdd58a0edf4dc87aa18f75ed33 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=BD=D0=B0=D0=B1?= <nabijaczleweli@nabijaczleweli.xyz>
Date: Thu, 23 Dec 2021 20:39:29 +0100
Subject: [PATCH] FreeBSD: fix unpropagated error
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When performing I/O on FreeBSD using a file based vdev ensure all
errors encountered when reading/writing are propagated through the
zio pipeline.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12904
---
 module/os/freebsd/zfs/vdev_file.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/module/os/freebsd/zfs/vdev_file.c b/module/os/freebsd/zfs/vdev_file.c
index fc04a74761..742ac9786d 100644
--- a/module/os/freebsd/zfs/vdev_file.c
+++ b/module/os/freebsd/zfs/vdev_file.c
@@ -234,6 +234,7 @@ vdev_file_io_strategy(void *arg)
 		err = zfs_file_pwrite(vf->vf_file, buf, size, off, &resid);
 		abd_return_buf(zio->io_abd, buf, size);
 	}
+	zio->io_error = err;
 	if (resid != 0 && zio->io_error == 0)
 		zio->io_error = ENOSPC;