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qtest: Don't segfault with invalid -qtest option

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This prints an error message, instead of core dump, when "-qtest"
option value is invalid, e.g.:

    $ ./x86_64-softmmu/qemu-system-x86_64 -qtest unknown
        qemu-system-x86_64: Failed to initialize device for qtest:
        "unknown"

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Fam Zheng 2014-02-10 09:28:02 +08:00 • committed by Andreas Färber
parent 1f9c4cfda4
commit 23802b4fe0
3 changed files with 16 additions and 3 deletions
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8
vl.c
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@ -4078,7 +4078,13 @@ int main(int argc, char **argv, char **envp)
configure_accelerator();
if (qtest_chrdev) {
qtest_init(qtest_chrdev, qtest_log);
Error *local_err = NULL;
qtest_init(qtest_chrdev, qtest_log, &local_err);
if (local_err) {
error_report("%s", error_get_pretty(local_err));
error_free(local_err);
exit(1);
}
}
machine_opts = qemu_get_machine_opts();