X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev%2Flib%2Flibudev-device.c;h=578afe7ec2d4e77bf707faed29da7063121a7417;hp=00b9440386171542f294bbbcb2f6f6393ec01108;hb=95d90c4fe0581d8b630c62e38591b3af960d131a;hpb=9b3a33a9ff9386b4af3229762fa7673e670b00e7

diff --git a/udev/lib/libudev-device.c b/udev/lib/libudev-device.c
index 00b944038..578afe7ec 100644
--- a/udev/lib/libudev-device.c
+++ b/udev/lib/libudev-device.c
@@ -346,8 +346,15 @@ int udev_device_get_properties(struct udev_device *udev_device,
 
 const char *udev_device_get_driver(struct udev_device *udev_device)
 {
+	char driver[NAME_SIZE];
+
 	if (udev_device == NULL)
 		return NULL;
+	if (udev_device->driver != NULL)
+		return udev_device->driver;
+	if (util_get_sys_driver(udev_device->udev, udev_device->devpath, driver, sizeof(driver)) < 2)
+		return NULL;
+	udev_device->driver = strdup(driver);
 	return udev_device->driver;
 }