When processing list of USB devices, avoid allocating memory
for devices which later will be skipped. Use existing libusb
struct first to check whether the device shall be excluded.
Signed-off-by: Yuri Benditovich <yuri.benditov...@daynix.com>
---
src/win-usb-dev.c | 27 ++++++++++++---------------
1 file changed, 12 insertions(+), 15 deletions(-)
diff --git a/src/win-usb-dev.c b/src/win-usb-dev.c
index bb11e8b..b3b2ed8 100644
--- a/src/win-usb-dev.c
+++ b/src/win-usb-dev.c
@@ -97,7 +97,7 @@ static void g_udev_device_print_list(GList *l, const gchar
*msg) {}
#endif
static void g_udev_device_print(GUdevDevice *udev, const gchar *msg);
-static gboolean g_udev_skip_search(GUdevDevice *udev);
+static gboolean g_udev_skip_search(libusb_device *dev);
GQuark g_udev_client_error_quark(void)
{
@@ -152,13 +152,12 @@ g_udev_client_list_devices(GUdevClient *self, GList
**devs,
n = 0;
for (dev = lusb_list; *dev; dev++) {
+ if (g_udev_skip_search(*dev)) {
+ continue;
+ }
udevinfo = g_new0(GUdevDeviceInfo, 1);
get_usb_dev_info(*dev, udevinfo);
udevice = g_udev_device_new(udevinfo);
- if (g_udev_skip_search(udevice)) {
- g_object_unref(udevice);
- continue;
- }
*devs = g_list_prepend(*devs, udevice);
n++;
}
@@ -549,19 +548,17 @@ static void g_udev_device_print(GUdevDevice *udev, const
gchar *msg)
udevinfo->vid, udevinfo->pid, udevinfo->class);
}
-static gboolean g_udev_skip_search(GUdevDevice *udev)
+static gboolean g_udev_skip_search(libusb_device *dev)
{
- GUdevDeviceInfo* udevinfo;
gboolean skip;
+ uint8_t addr = libusb_get_device_address(dev);
+ struct libusb_device_descriptor desc;
- g_return_val_if_fail(G_UDEV_DEVICE(udev), FALSE);
-
- udevinfo = udev->priv->udevinfo;
- g_return_val_if_fail(udevinfo != NULL, FALSE);
+ libusb_get_device_descriptor(dev, &desc);
- skip = ((udevinfo->addr == 0xff) || /* root hub (HCD) */
- (udevinfo->addr == 1) || /* root hub addr */
- (udevinfo->class == LIBUSB_CLASS_HUB) || /* hub*/
- (udevinfo->addr == 0)); /* bad address */
+ skip = ((addr == 0xff) || /* root hub (HCD) */
+ (addr == 1) || /* root hub addr */
+ (desc.bDeviceClass == LIBUSB_CLASS_HUB) || /* hub*/
+ (addr == 0)); /* bad address */
return skip;
}
--
2.17.1
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