qemu-option: Make qemu_opts_foreach() accumulate return values
Return the bitwise inclusive or of all return values instead of the
last call's value. This lets you find out whether any of the calls
returned a non-zero value.
No functional change, as existing users either don't care for the
value, or pass non-zero abort_on_failure, which breaks the loop on the
first non-zero return value.
Signed-off-by: Markus Armbruster <[email protected]>
Signed-off-by: Anthony Liguori <[email protected]>
diff --git a/qemu-option.c b/qemu-option.c
index 24392fc..a52a4c4 100644
--- a/qemu-option.c
+++ b/qemu-option.c
@@ -814,7 +814,7 @@
int rc = 0;
QTAILQ_FOREACH(opts, &list->head, next) {
- rc = func(opts, opaque);
+ rc |= func(opts, opaque);
if (abort_on_failure && rc != 0)
break;
}
