Let corrupt() preserve errno in order to be able to simplify error
handling in future.

This is rather easy as the errno value when entering corrupt() is
saved already.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Julien Grall <jgrall@amazon.com>
---
 tools/xenstore/xenstored_core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/xenstore/xenstored_core.c b/tools/xenstore/xenstored_core.c
index d48208ecfe..8c2cca62b7 100644
--- a/tools/xenstore/xenstored_core.c
+++ b/tools/xenstore/xenstored_core.c
@@ -2549,6 +2549,8 @@ void corrupt(struct connection *conn, const char *fmt, ...)
 	talloc_free(str);
 
 	check_store();
+
+	errno = saved_errno;
 }
 
 #ifndef NO_SOCKETS
-- 
2.35.3