tools: initialize main loop before block layer

Tools were broken because they initialized the block layer while
qemu_aio_context was still NULL.

Reported-by: malc <av1474@comtv.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
(cherry picked from commit 2592c59a66d456fe98fe96cb5787b356c40ee66f)

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
(cherry picked from commit 5c0d5aebd5c9cf445fb71e01ee56efad094248f5)

2 files changed, 2 insertions, 4 deletions

diff --git a/qemu-img.c b/qemu-img.c
index 7615e9191..c90ae4abb 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -1698,14 +1698,13 @@ int main(int argc, char **argv)
 
     error_set_progname(argv[0]);
 
+    qemu_init_main_loop();
     bdrv_init();
     if (argc < 2)
         help();
     cmdname = argv[1];
     argc--; argv++;
 
-    qemu_init_main_loop();
-
     /* find the command */
     for(cmd = img_cmds; cmd->name != NULL; cmd++) {
         if (!strcmp(cmdname, cmd->name)) {
diff --git a/qemu-io.c b/qemu-io.c
index d0f4fb70c..1ad7d3adb 100644
--- a/qemu-io.c
+++ b/qemu-io.c
@@ -1892,9 +1892,8 @@ int main(int argc, char **argv)
         exit(1);
     }
 
-    bdrv_init();
-
     qemu_init_main_loop();
+    bdrv_init();
 
     /* initialize commands */
     quit_init();