Merge tag 'gpio-v4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...

[sfrench/cifs-2.6.git] / block / genhd.c

diff --git a/block/genhd.c b/block/genhd.c
index be5bab20b2abf278fd7d7370c1a082de0928b1ed..cff6bdf27226bb597066bc377af3760b38a8250a 100644 (file)
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -567,7 +567,8 @@ static int exact_lock(dev_t devt, void *data)
        return 0;
 }
 
-static void register_disk(struct device *parent, struct gendisk *disk)
+static void register_disk(struct device *parent, struct gendisk *disk,
+                         const struct attribute_group **groups)
 {
        struct device *ddev = disk_to_dev(disk);
        struct block_device *bdev;
@@ -582,6 +583,10 @@ static void register_disk(struct device *parent, struct gendisk *disk)
        /* delay uevents, until we scanned partition table */
        dev_set_uevent_suppress(ddev, 1);
 
+       if (groups) {
+               WARN_ON(ddev->groups);
+               ddev->groups = groups;
+       }
        if (device_add(ddev))
                return;
        if (!sysfs_deprecated) {
@@ -647,6 +652,7 @@ exit:
  * __device_add_disk - add disk information to kernel list
  * @parent: parent device for the disk
  * @disk: per-device partitioning information
+ * @groups: Additional per-device sysfs groups
  * @register_queue: register the queue if set to true
  *
  * This function registers the partitioning information in @disk
@@ -655,6 +661,7 @@ exit:
  * FIXME: error handling
  */
 static void __device_add_disk(struct device *parent, struct gendisk *disk,
+                             const struct attribute_group **groups,
                              bool register_queue)
 {
        dev_t devt;
@@ -698,7 +705,7 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk,
                blk_register_region(disk_devt(disk), disk->minors, NULL,
                                    exact_match, exact_lock, disk);
        }
-       register_disk(parent, disk);
+       register_disk(parent, disk, groups);
        if (register_queue)
                blk_register_queue(disk);
 
@@ -712,15 +719,17 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk,
        blk_integrity_add(disk);
 }
 
-void device_add_disk(struct device *parent, struct gendisk *disk)
+void device_add_disk(struct device *parent, struct gendisk *disk,
+                    const struct attribute_group **groups)
+
 {
-       __device_add_disk(parent, disk, true);
+       __device_add_disk(parent, disk, groups, true);
 }
 EXPORT_SYMBOL(device_add_disk);
 
 void device_add_disk_no_queue_reg(struct device *parent, struct gendisk *disk)
 {
-       __device_add_disk(parent, disk, false);
+       __device_add_disk(parent, disk, NULL, false);
 }
 EXPORT_SYMBOL(device_add_disk_no_queue_reg);