ARM: OMAP: fix uninitialized warning

[linux-2.6-omap-h63xx.git] / drivers / mtd / mtdchar.c

diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index d2f331876e4c86a9b8ee74a36541a1baf01b4b9a..e00d424e6575da02ed20246b44c6545c1cbe8b34 100644 (file)
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -410,16 +410,20 @@ 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;
        }