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char: don't exit on hmp 'chardev-add help'

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qemu_chr_new_from_opts() is used from both vl.c and hmp,
and it is quite confusing to see qemu suddenly exit after receiving a help
option in hmp.

Do exit(0) from vl.c instead.

Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Message-Id: <1500977081-120929-1-git-send-email-anton.nefedov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Anton Nefedov 2017-07-25 13:04:41 +03:00 • committed by Paolo Bonzini
parent 4db0db1fa6
commit 0ec846bfac
3 changed files with 10 additions and 6 deletions
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4
include/chardev/char.h
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@ -65,7 +65,9 @@ struct Chardev {
*
* @opts see qemu-config.c for a list of valid options
*
* Returns: a new character backend
* Returns: on success: a new character backend
* otherwise: NULL; @errp specifies the error
* or left untouched in case of help option
*/
Chardev *qemu_chr_new_from_opts(QemuOpts *opts,
Error **errp);