PawletOS/external_libudev-zero
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do not try to search parent device very deeply

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This commit is contained in:
illiliti
2020-07-31 01:13:41 +03:00
parent bfd09f153e
commit e751c69241
1 changed files with 10 additions and 6 deletions
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16
udev_device.c
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@@ -117,31 +117,35 @@ struct udev *udev_device_get_udev(struct udev_device *udev_device)
struct udev_device *udev_device_get_parent(struct udev_device *udev_device)
{
char *tmp, *path;
char *path, *syspath;
if (!udev_device) {
return NULL;
}
path = strdup(udev_device_get_syspath(udev_device));
syspath = path = strdup(udev_device_get_syspath(udev_device));
if (!path) {
return NULL;
}
if (strncmp(path, "/sys/devices/", 13) == 0) {
path += 13;
}
do {
if ((tmp = strrchr(path, '/'))) {
*tmp = '\0';
if ((path = strrchr(path, '/'))) {
*path = '\0';
}
else {
break;
}
udev_device->parent = udev_device_new_from_syspath(udev_device->udev, path);
udev_device->parent = udev_device_new_from_syspath(udev_device->udev, syspath);
}
while (!udev_device->parent);
free(path);
free(syspath);
return udev_device->parent;
}