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builder: fix calls to builder_add that are not terminated by NULL

Browse source 
spa_pod_builder_add() is a va_args function that is terminated by a NULL
argument. The last argument must be a pointer type, because otherwise
checking for a NULL pointer can fail.

The __attribute__((__sentinel__)) prints a compiler warning, if the last
argument of a call to spa_pod_builder_add() is not a pointer type.

Fix all sentinel warnings by replacing all integer type 0 with pointer
type NULL in calls to spa_pod_builder_add().
This commit is contained in:
Michael Tretter 2019-07-05 12:57:55 +02:00 • committed by Wim Taymans
parent 4350bd624f
commit 39c01ba2fe
6 changed files with 32 additions and 31 deletions
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3
spa/include/spa/pod/builder.h
View file

@ -574,7 +574,8 @@ spa_pod_builder_addv(struct spa_pod_builder *builder,
return spa_pod_builder_deref(builder, builder->frame[builder->state.depth].ref);
}
static inline void *spa_pod_builder_add(struct spa_pod_builder *builder, const char *format, ...)
static inline __attribute__((__sentinel__)) void *
spa_pod_builder_add(struct spa_pod_builder *builder, const char *format, ...)
{
void *res;
va_list args;

22
spa/plugins/alsa/alsa-monitor.c
View file

@ -173,22 +173,22 @@ fill_item(struct impl *this, snd_ctl_card_info_t *card_info, snd_pcm_info_t *dev
if (!(str && *str))
str = udev_device_get_syspath(dev);
if (str && *str) {
spa_pod_builder_add(builder, "s", "device.bus_path", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.bus_path", "s", str, NULL);
}
if ((str = udev_device_get_syspath(dev)) && *str) {
spa_pod_builder_add(builder, "s", "sysfs.path", "s", str, 0);
spa_pod_builder_add(builder, "s", "sysfs.path", "s", str, NULL);
}
if ((str = udev_device_get_property_value(dev, "ID_ID")) && *str) {
spa_pod_builder_add(builder, "s", "udev.id", "s", str, 0);
spa_pod_builder_add(builder, "s", "udev.id", "s", str, NULL);
}
if ((str = udev_device_get_property_value(dev, "ID_BUS")) && *str) {
spa_pod_builder_add(builder, "s", "device.bus", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.bus", "s", str, NULL);
}
if ((str = udev_device_get_property_value(dev, "SUBSYSTEM")) && *str) {
spa_pod_builder_add(builder, "s", "device.subsystem", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.subsystem", "s", str, NULL);
}
if ((str = udev_device_get_property_value(dev, "ID_VENDOR_ID")) && *str) {
spa_pod_builder_add(builder, "s", "device.vendor.id", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.vendor.id", "s", str, NULL);
}
str = udev_device_get_property_value(dev, "ID_VENDOR_FROM_DATABASE");
if (!(str && *str)) {
@ -198,18 +198,18 @@ fill_item(struct impl *this, snd_ctl_card_info_t *card_info, snd_pcm_info_t *dev
}
}
if (str && *str) {
spa_pod_builder_add(builder, "s", "device.vendor.name", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.vendor.name", "s", str, NULL);
}
if ((str = udev_device_get_property_value(dev, "ID_MODEL_ID")) && *str) {
spa_pod_builder_add(builder, "s", "device.product.id", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.product.id", "s", str, NULL);
}
spa_pod_builder_add(builder, "s", "device.product.name", "s", name, 0);
spa_pod_builder_add(builder, "s", "device.product.name", "s", name, NULL);
if ((str = udev_device_get_property_value(dev, "ID_SERIAL")) && *str) {
spa_pod_builder_add(builder, "s", "device.serial", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.serial", "s", str, NULL);
}
if ((str = udev_device_get_property_value(dev, "SOUND_FORM_FACTOR")) && *str) {
spa_pod_builder_add(builder, "s", "device.form_factor", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.form_factor", "s", str, NULL);
}
*item = spa_pod_builder_add(builder, "]>", NULL);

2
spa/plugins/alsa/alsa-utils.c
View file

@ -143,7 +143,7 @@ spa_alsa_enum_format(struct state *state, uint32_t *index,
spa_pod_builder_push_object(&b, state->type.param.idEnumFormat, state->type.format);
spa_pod_builder_add(&b,
"I", state->type.media_type.audio,
"I", state->type.media_subtype.raw, 0);
"I", state->type.media_subtype.raw, NULL);
snd_pcm_format_mask_alloca(&fmask);
snd_pcm_hw_params_get_format_mask(params, fmask);

22
spa/plugins/v4l2/v4l2-monitor.c
View file

@ -132,22 +132,22 @@ static void fill_item(struct impl *this, struct item *item, struct udev_device *
if (!(str && *str))
str = udev_device_get_syspath(item->udevice);
if (str && *str) {
spa_pod_builder_add(builder, "s", "device.bus_path", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.bus_path", "s", str, NULL);
}
if ((str = udev_device_get_syspath(item->udevice)) && *str) {
spa_pod_builder_add(builder, "s", "sysfs.path", "s", str, 0);
spa_pod_builder_add(builder, "s", "sysfs.path", "s", str, NULL);
}
if ((str = udev_device_get_property_value(item->udevice, "ID_ID")) && *str) {
spa_pod_builder_add(builder, "s", "udev.id", "s", str, 0);
spa_pod_builder_add(builder, "s", "udev.id", "s", str, NULL);
}
if ((str = udev_device_get_property_value(item->udevice, "ID_BUS")) && *str) {
spa_pod_builder_add(builder, "s", "device.bus", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.bus", "s", str, NULL);
}
if ((str = udev_device_get_property_value(item->udevice, "SUBSYSTEM")) && *str) {
spa_pod_builder_add(builder, "s", "device.subsystem", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.subsystem", "s", str, NULL);
}
if ((str = udev_device_get_property_value(item->udevice, "ID_VENDOR_ID")) && *str) {
spa_pod_builder_add(builder, "s", "device.vendor.id", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.vendor.id", "s", str, NULL);
}
str = udev_device_get_property_value(item->udevice, "ID_VENDOR_FROM_DATABASE");
if (!(str && *str)) {
@ -157,17 +157,17 @@ static void fill_item(struct impl *this, struct item *item, struct udev_device *
}
}
if (str && *str) {
spa_pod_builder_add(builder, "s", "device.vendor.name", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.vendor.name", "s", str, NULL);
}
if ((str = udev_device_get_property_value(item->udevice, "ID_MODEL_ID")) && *str) {
spa_pod_builder_add(builder, "s", "device.product.id", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.product.id", "s", str, NULL);
}
spa_pod_builder_add(builder, "s", "device.product.name", "s", name, 0);
spa_pod_builder_add(builder, "s", "device.product.name", "s", name, NULL);
if ((str = udev_device_get_property_value(item->udevice, "ID_SERIAL")) && *str) {
spa_pod_builder_add(builder, "s", "device.serial", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.serial", "s", str, NULL);
}
if ((str = udev_device_get_property_value(item->udevice, "ID_V4L_CAPABILITIES")) && *str) {
spa_pod_builder_add(builder, "s", "device.capabilities", "s", str, 0);
spa_pod_builder_add(builder, "s", "device.capabilities", "s", str, NULL);
}
*result = spa_pod_builder_add(builder, "]>", NULL);

8
spa/plugins/v4l2/v4l2-source.c
View file

@ -458,22 +458,22 @@ static int port_get_format(struct spa_node *node,
spa_pod_builder_add(builder,
"I", port->current_format.media_type,
"I", port->current_format.media_subtype, 0);
"I", port->current_format.media_subtype, NULL);
if (port->current_format.media_subtype == t->media_subtype.raw) {
spa_pod_builder_add(builder,
":", t->format_video.format, "I", port->current_format.info.raw.format,
":", t->format_video.size, "R", &port->current_format.info.raw.size,
":", t->format_video.framerate, "F", &port->current_format.info.raw.framerate, 0);
":", t->format_video.framerate, "F", &port->current_format.info.raw.framerate, NULL);
} else if (port->current_format.media_subtype == t->media_subtype_video.mjpg ||
port->current_format.media_subtype == t->media_subtype_video.jpeg) {
spa_pod_builder_add(builder,
":", t->format_video.size, "R", &port->current_format.info.mjpg.size,
":", t->format_video.framerate, "F", &port->current_format.info.mjpg.framerate, 0);
":", t->format_video.framerate, "F", &port->current_format.info.mjpg.framerate, NULL);
} else if (port->current_format.media_subtype == t->media_subtype_video.h264) {
spa_pod_builder_add(builder,
":", t->format_video.size, "R", &port->current_format.info.h264.size,
":", t->format_video.framerate, "F", &port->current_format.info.h264.framerate, 0);
":", t->format_video.framerate, "F", &port->current_format.info.h264.framerate, NULL);
} else
return -EIO;

6
spa/plugins/v4l2/v4l2-utils.c
View file

@ -692,15 +692,15 @@ spa_v4l2_enum_format(struct impl *this,
spa_pod_builder_push_object(builder, t->param.idEnumFormat, t->format);
spa_pod_builder_add(builder,
"I", media_type,
"I", media_subtype, 0);
"I", media_subtype, NULL);
if (media_subtype == t->media_subtype.raw) {
spa_pod_builder_add(builder,
":", t->format_video.format, "I", video_format, 0);
":", t->format_video.format, "I", video_format, NULL);
}
spa_pod_builder_add(builder,
":", t->format_video.size, "R", &SPA_RECTANGLE(port->frmsize.discrete.width,
port->frmsize.discrete.height), 0);
port->frmsize.discrete.height), NULL);
prop = spa_pod_builder_deref(builder,
spa_pod_builder_push_prop(builder, t->format_video.framerate,