From: Olaf Hering <olaf@aepfle.de>
Date: Wed, 23 Sep 2020 06:48:40 +0000 (+0200)
Subject: tools/libxc: report malloc errors in writev_exact
X-Git-Tag: archive/raspbian/4.16.0+51-g0941d6cb-1+rpi1~2^2~42^2~1574
X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https://%22%22/%22http:/www.example.com/cgi/%22https:/%22%22?a=commitdiff_plain;h=0d8d289af7a679c028462c4ed5d98586f9ef9648;p=xen.git

tools/libxc: report malloc errors in writev_exact

The caller of writev_exact should be notified about malloc errors
when dealing with partial writes.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Wei Liu <wl@xen.org>
---

diff --git a/tools/libs/ctrl/xc_private.c b/tools/libs/ctrl/xc_private.c
index 8af96b1b7e..3fab94f9c0 100644
--- a/tools/libs/ctrl/xc_private.c
+++ b/tools/libs/ctrl/xc_private.c
@@ -721,6 +721,7 @@ int writev_exact(int fd, const struct iovec *iov, int iovcnt)
                     if ( !local_iov )
                     {
                         saved_errno = ENOMEM;
+                        rc = -1;
                         goto out;
                     }