On Mon, 15 Oct 2012 10:06:55 +0200 Gerd Hoffmann <kra...@redhat.com> wrote:
> Signed-off-by: Gerd Hoffmann <kra...@redhat.com> > --- > qemu-char.c | 24 +++++++++++++++--------- > qemu-char.h | 3 ++- > vl.c | 7 ++++++- > 3 files changed, 23 insertions(+), 11 deletions(-) > > diff --git a/qemu-char.c b/qemu-char.c > index b082bae..e2e1da8 100644 > --- a/qemu-char.c > +++ b/qemu-char.c > @@ -2755,19 +2755,20 @@ static const struct { > }; > > CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts, > - void (*init)(struct CharDriverState *s)) > + void (*init)(struct CharDriverState *s), > + Error **errp) > { > CharDriverState *chr; > int i; > > if (qemu_opts_id(opts) == NULL) { > - fprintf(stderr, "chardev: no id specified\n"); > + error_setg(errp, "chardev: no id specified\n"); > return NULL; > } > > if (qemu_opt_get(opts, "backend") == NULL) { > - fprintf(stderr, "chardev: \"%s\" missing backend\n", > - qemu_opts_id(opts)); > + error_setg(errp, "chardev: \"%s\" missing backend\n", > + qemu_opts_id(opts)); > return NULL; > } > for (i = 0; i < ARRAY_SIZE(backend_table); i++) { > @@ -2775,15 +2776,15 @@ CharDriverState *qemu_chr_new_from_opts(QemuOpts > *opts, > break; > } > if (i == ARRAY_SIZE(backend_table)) { > - fprintf(stderr, "chardev: backend \"%s\" not found\n", > - qemu_opt_get(opts, "backend")); > + error_setg(errp, "chardev: backend \"%s\" not found\n", > + qemu_opt_get(opts, "backend")); > return NULL; > } > > chr = backend_table[i].open(opts); > if (!chr) { > - fprintf(stderr, "chardev: opening backend \"%s\" failed\n", > - qemu_opt_get(opts, "backend")); > + error_setg(errp, "chardev: opening backend \"%s\" failed\n", > + qemu_opt_get(opts, "backend")); > return NULL; > } > > @@ -2813,6 +2814,7 @@ CharDriverState *qemu_chr_new(const char *label, const > char *filename, void (*in > const char *p; > CharDriverState *chr; > QemuOpts *opts; > + Error *err = NULL; > > if (strstart(filename, "chardev:", &p)) { > return qemu_chr_find(p); > @@ -2822,7 +2824,11 @@ CharDriverState *qemu_chr_new(const char *label, const > char *filename, void (*in > if (!opts) > return NULL; > > - chr = qemu_chr_new_from_opts(opts, init); > + chr = qemu_chr_new_from_opts(opts, init, &err); > + if (error_is_set(&err)) { > + fprintf(stderr, "%s\n", error_get_pretty(err)); > + error_free(err); > + } > if (chr && qemu_opt_get_bool(opts, "mux", 0)) { > monitor_init(chr, MONITOR_USE_READLINE); > } > diff --git a/qemu-char.h b/qemu-char.h > index 486644b..adae13e 100644 > --- a/qemu-char.h > +++ b/qemu-char.h > @@ -88,7 +88,8 @@ struct CharDriverState { > * Returns: a new character backend > */ > CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts, > - void (*init)(struct CharDriverState *s)); > + void (*init)(struct CharDriverState *s), > + Error **errp); > > /** > * @qemu_chr_new: > diff --git a/vl.c b/vl.c > index 5b357a3..35eb627 100644 > --- a/vl.c > +++ b/vl.c > @@ -1940,8 +1940,13 @@ static int device_init_func(QemuOpts *opts, void > *opaque) > static int chardev_init_func(QemuOpts *opts, void *opaque) > { > CharDriverState *chr; > + Error *err = NULL; > > - chr = qemu_chr_new_from_opts(opts, NULL); > + chr = qemu_chr_new_from_opts(opts, NULL, &err); > + if (error_is_set(&err)) { > + fprintf(stderr, "%s\n", error_get_pretty(err)); > + error_free(err); > + } > if (!chr) > return -1; If you respin, please drop that check as it's not needed. Also, we usually name the "internal" Error variable local_err. > return 0;