[PATCH] bsg: fix bsg_register_queue error path

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



unfortunately, if IS_ERR(class_dev) is true, that means class_dev isn't
null and the check in the error leg is pointless ... it's also asking
for trouble to request unregistration of a device we haven't actually
created (although it works currently).  Fix by using explicit gotos and
unregisters.

James

diff --git a/block/bsg.c b/block/bsg.c
index d4fa8cd..1659d63 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -993,7 +993,7 @@ retry:
 	if (q->kobj.sd) {
 		ret = sysfs_create_link(&q->kobj, &bcd->class_dev->kobj, "bsg");
 		if (ret)
-			goto err;
+			goto err_unregister;
 	}
 
 	list_add_tail(&bcd->list, &bsg_class_list);
@@ -1001,9 +1001,10 @@ retry:
 
 	mutex_unlock(&bsg_mutex);
 	return 0;
+
+err_unregister:
+	class_device_unregister(class_dev);
 err:
-	if (class_dev)
-		class_device_destroy(bsg_class, MKDEV(bsg_major, bcd->minor));
 	mutex_unlock(&bsg_mutex);
 	return ret;
 }


-
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]
  Powered by Linux