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session: skip adding duplicate DRM device

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Signed-off-by: sunzhguy <sunzhigang1@kylinos.cn>
This commit is contained in:
sunzhguy 2025-01-03 16:58:36 +08:00
parent 38923826c3
commit 5eed5d622d
1 changed files with 9 additions and 1 deletions
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10
backend/session/session.c
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@ -191,14 +191,22 @@ static int handle_udev_event(int fd, uint32_t mask, void *data) {
goto out;
}
dev_t devnum = udev_device_get_devnum(udev_dev);
if (strcmp(action, "add") == 0) {
struct wlr_device *dev;
wl_list_for_each(dev, &session->devices, link) {
if (dev->dev == devnum) {
wlr_log(WLR_DEBUG, "Skipping duplicate device %s", sysname);
goto out;
}
}
wlr_log(WLR_DEBUG, "DRM device %s added", sysname);
struct wlr_session_add_event event = {
.path = devnode,
};
wl_signal_emit_mutable(&session->events.add_drm_card, &event);
} else if (strcmp(action, "change") == 0 || strcmp(action, "remove") == 0) {
dev_t devnum = udev_device_get_devnum(udev_dev);
struct wlr_device *dev;
wl_list_for_each(dev, &session->devices, link) {
if (dev->dev != devnum) {