[Qemu-stable] [PATCH 07/14] qemu-io: Don't print NULL when open without non-option arg fails

[Markus Armbruster]

Reproducer: "open -o a=b".  Broken in commit fd0fee3.
Signed-off-by: Markus Armbruster <address@hidden>
---
 qemu-io.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/qemu-io.c b/qemu-io.c
index ffbad25..0daf413 100644
--- a/qemu-io.c
+++ b/qemu-io.c
@@ -61,7 +61,8 @@ static int openfile(char *name, int flags, int growable, 
QDict *opts)
         if (bdrv_open(&qemuio_bs, name, NULL, opts, flags | BDRV_O_PROTOCOL,
                       NULL, &local_err))
         {
-            fprintf(stderr, "%s: can't open device %s: %s\n", progname, name,
+            fprintf(stderr, "%s: can't open%s%s: %s\n", progname,
+                    name ? " device " : "", name ?: "",
                     error_get_pretty(local_err));
             error_free(local_err);
             return 1;
@@ -72,7 +73,8 @@ static int openfile(char *name, int flags, int growable, 
QDict *opts)
         if (bdrv_open(&qemuio_bs, name, NULL, opts, flags, NULL, &local_err)
             < 0)
         {
-            fprintf(stderr, "%s: can't open device %s: %s\n", progname, name,
+            fprintf(stderr, "%s: can't open%s%s: %s\n", progname,
+                    name ? " device " : "", name ?: "",
                     error_get_pretty(local_err));
             error_free(local_err);
             bdrv_unref(qemuio_bs);
-- 
1.9.3