Verify parent_dev before calling udev_device_get_sysattr_value

Fixes: #16705 Not all udev devices have parent devices. Calling udev_device_get_ functions yield an assertion error if called with a NULL pointer. Changes to be committed: modified: cmd/zed/zed_disk_event.c Signed-off-by: Sietse <sietse@wizdom.nu>
openzfs · Nov 4, 2024 · 2c2cffa · 2c2cffa
1 parent 91bd12d
commit 2c2cffa
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/cmd/zed/zed_disk_event.c b/cmd/zed/zed_disk_event.c
@@ -139,7 +139,8 @@ dev_event_nvlist(struct udev_device *dev)
 		 * is /dev/sda.
 		 */
 		struct udev_device *parent_dev = udev_device_get_parent(dev);
-		if ((value = udev_device_get_sysattr_value(parent_dev, "size"))
+		if (parent_dev != NULL &&
+		    (value = udev_device_get_sysattr_value(parent_dev, "size"))
 		    != NULL) {
 			uint64_t numval = DEV_BSIZE;