[PATCH] tools/xen-ucode: fix error code propagation of microcode load operation

[Igor Druzhinin <igor.druzhinin@xxxxxxxxxx>]

Otherwise it's impossible to know the reason for a fault or blob rejection
inside the automation.

Signed-off-by: Igor Druzhinin <igor.druzhinin@xxxxxxxxxx>
---
 tools/misc/xen-ucode.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/misc/xen-ucode.c b/tools/misc/xen-ucode.c
index 0c257f4..2c907e1 100644
--- a/tools/misc/xen-ucode.c
+++ b/tools/misc/xen-ucode.c
@@ -62,8 +62,11 @@ int main(int argc, char *argv[])
 
     ret = xc_microcode_update(xch, buf, len);
     if ( ret )
+    {
+        ret = errno;
         fprintf(stderr, "Failed to update microcode. (err: %s)\n",
                 strerror(errno));
+    }
 
     xc_interface_close(xch);
 
@@ -74,5 +77,5 @@ int main(int argc, char *argv[])
     }
     close(fd);
 
-    return 0;
+    return ret;
 }
-- 
2.7.4