From 38fa6feebd2f00309b96388f85e6865d5c25f6f5 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Wed, 7 Dec 2022 16:16:00 +0100
Subject: [KERNEL] Fix a copy/paste error acessing wrong variable in sanity
 check

---
 src/kernel/xloop_file_fmt_qcow_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/kernel/xloop_file_fmt_qcow_main.c b/src/kernel/xloop_file_fmt_qcow_main.c
index 8eb7b52..4764435 100644
--- a/src/kernel/xloop_file_fmt_qcow_main.c
+++ b/src/kernel/xloop_file_fmt_qcow_main.c
@@ -1129,7 +1129,7 @@ static int __qcow_file_fmt_read_bvec(struct xloop_file_fmt *xlo_fmt, struct bio_
 			mutex_unlock(&qcow_data->global_mutex);
 			if (ret < 0)
 				goto fail;
-			if (len == 0) {
+			if (ret == 0) {
 				dev_err(xloop_file_fmt_to_dev(xlo_fmt), "Unexpected empty read in compressed cluster\n");
 				ret = -EIO;
 				goto fail;
-- 
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