1 files changed, 17 insertions, 14 deletions

diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 633f7a0ebb2c..6d5b213b8a9b 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -348,8 +348,8 @@ static ssize_t whole_disk_show(struct device *dev,
 static DEVICE_ATTR(whole_disk, S_IRUSR | S_IRGRP | S_IROTH,
                    whole_disk_show, NULL);
 
-int add_partition(struct gendisk *disk, int partno,
-                  sector_t start, sector_t len, int flags)
+struct hd_struct *add_partition(struct gendisk *disk, int partno,
+                                sector_t start, sector_t len, int flags)
 {
         struct hd_struct *p;
         dev_t devt = MKDEV(0, 0);
@@ -361,15 +361,15 @@ int add_partition(struct gendisk *disk, int partno,
 
         err = disk_expand_part_tbl(disk, partno);
         if (err)
-                return err;
+                return ERR_PTR(err);
         ptbl = disk->part_tbl;
 
         if (ptbl->part[partno])
-                return -EBUSY;
+                return ERR_PTR(-EBUSY);
 
         p = kzalloc(sizeof(*p), GFP_KERNEL);
         if (!p)
-                return -ENOMEM;
+                return ERR_PTR(-EBUSY);
 
         if (!init_part_stats(p)) {
                 err = -ENOMEM;
@@ -395,7 +395,7 @@ int add_partition(struct gendisk *disk, int partno,
 
         err = blk_alloc_devt(p, &devt);
         if (err)
-                goto out_free;
+                goto out_free_stats;
         pdev->devt = devt;
 
         /* delay uevent until 'holders' subdir is created */
@@ -424,18 +424,20 @@ int add_partition(struct gendisk *disk, int partno,
         if (!ddev->uevent_suppress)
                 kobject_uevent(&pdev->kobj, KOBJ_ADD);
 
-        return 0;
+        return p;
 
+out_free_stats:
+        free_part_stats(p);
 out_free:
         kfree(p);
-        return err;
+        return ERR_PTR(err);
 out_del:
         kobject_put(p->holder_dir);
         device_del(pdev);
 out_put:
         put_device(pdev);
         blk_free_devt(devt);
-        return err;
+        return ERR_PTR(err);
 }
 
 /* Not exported, helper to add_disk(). */
@@ -566,15 +568,16 @@ int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
                                disk->disk_name, p, (unsigned long long) size);
                         size = get_capacity(disk) - from;
                 }
-                res = add_partition(disk, p, from, size, state->parts[p].flags);
-                if (res) {
-                        printk(KERN_ERR " %s: p%d could not be added: %d\n",
-                                disk->disk_name, p, -res);
+                part = add_partition(disk, p, from, size,
+                                     state->parts[p].flags);
+                if (IS_ERR(part)) {
+                        printk(KERN_ERR " %s: p%d could not be added: %ld\n",
+                               disk->disk_name, p, -PTR_ERR(part));
                         continue;
                 }
 #ifdef CONFIG_BLK_DEV_MD
                 if (state->parts[p].flags & ADDPART_FLAG_RAID)
-                        md_autodetect_dev(bdev->bd_dev+p);
+                        md_autodetect_dev(part_to_dev(part)->devt);
 #endif
         }
         kfree(state);