Merge git://git.infradead.org/mtd-2.6
[linux-2.6.git] / drivers / mtd / mtdchar.c
index 13cc67a..963840e 100644 (file)
@@ -26,13 +26,11 @@ static void mtd_notify_add(struct mtd_info* mtd)
        if (!mtd)
                return;
 
-       device_create_drvdata(mtd_class, NULL,
-                             MKDEV(MTD_CHAR_MAJOR, mtd->index*2),
-                             NULL, "mtd%d", mtd->index);
+       device_create(mtd_class, NULL, MKDEV(MTD_CHAR_MAJOR, mtd->index*2),
+                     NULL, "mtd%d", mtd->index);
 
-       device_create_drvdata(mtd_class, NULL,
-                             MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1),
-                             NULL, "mtd%dro", mtd->index);
+       device_create(mtd_class, NULL, MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1),
+                     NULL, "mtd%dro", mtd->index);
 }
 
 static void mtd_notify_remove(struct mtd_info* mtd)
@@ -410,16 +408,20 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
 
        case MEMGETREGIONINFO:
        {
-               struct region_info_user ur;
+               uint32_t ur_idx;
+               struct mtd_erase_region_info *kr;
+               struct region_info_user *ur = (struct region_info_user *) argp;
 
-               if (copy_from_user(&ur, argp, sizeof(struct region_info_user)))
+               if (get_user(ur_idx, &(ur->regionindex)))
                        return -EFAULT;
 
-               if (ur.regionindex >= mtd->numeraseregions)
-                       return -EINVAL;
-               if (copy_to_user(argp, &(mtd->eraseregions[ur.regionindex]),
-                               sizeof(struct mtd_erase_region_info)))
+               kr = &(mtd->eraseregions[ur_idx]);
+
+               if (put_user(kr->offset, &(ur->offset))
+                   || put_user(kr->erasesize, &(ur->erasesize))
+                   || put_user(kr->numblocks, &(ur->numblocks)))
                        return -EFAULT;
+
                break;
        }