qemu/0137-qemu-file-check-exit-status-when-closing-a-pipe-QEMU.patch

From ba58f61422bff38da15331a092adfd2cfaadc8d5 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 22 Feb 2013 17:36:38 +0100
Subject: [PATCH] qemu-file: check exit status when closing a pipe QEMUFile

This is what exec_close does.  Move this to the underlying QEMUFile.

Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
(cherry picked from commit 13c7b2da073ec83cb47f9582149c8d28bb038e73)
---
 include/qemu/osdep.h | 7 +++++++
 migration-exec.c     | 4 ----
 savevm.c             | 3 +++
 3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
index 87d3b9c..df24400 100644
--- a/include/qemu/osdep.h
+++ b/include/qemu/osdep.h
@@ -9,6 +9,13 @@
 #include <sys/signal.h>
 #endif
 
+#ifndef _WIN32
+#include <sys/wait.h>
+#else
+#define WIFEXITED(x)   1
+#define WEXITSTATUS(x) (x)
+#endif
+
 #include <sys/time.h>
 
 #if defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10
diff --git a/migration-exec.c b/migration-exec.c
index 5dc7313..a2b5f8d 100644
--- a/migration-exec.c
+++ b/migration-exec.c
@@ -50,10 +50,6 @@ static int exec_close(MigrationState *s)
     ret = qemu_fclose(s->opaque);
     s->opaque = NULL;
     s->fd = -1;
-    if (ret >= 0 && !(WIFEXITED(ret) && WEXITSTATUS(ret) == 0)) {
-        /* close succeeded, but non-zero exit code: */
-        ret = -EIO; /* fake errno value */
-    }
     return ret;
 }
 
diff --git a/savevm.c b/savevm.c
index 1d49fde..6d6f1f1 100644
--- a/savevm.c
+++ b/savevm.c
@@ -247,6 +247,9 @@ static int stdio_pclose(void *opaque)
     ret = pclose(s->stdio_file);
     if (ret == -1) {
         ret = -errno;
+    } else if (!WIFEXITED(ret) || WEXITSTATUS(ret) != 0) {
+        /* close succeeded, but non-zero exit code: */
+        ret = -EIO; /* fake errno value */
     }
     g_free(s);
     return ret;