1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 98240575a18d..145b3d0dc0db 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -522,10 +522,6 @@ static int mtd_blkpg_ioctl(struct mtd_info *mtd,
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
-        /* Only master mtd device must be used to control partitions */
-        if (!mtd_is_master(mtd))
-                return -EINVAL;
-
         if (copy_from_user(&a, arg, sizeof(struct blkpg_ioctl_arg)))
                 return -EFAULT;
 
@@ -535,6 +531,10 @@ static int mtd_blkpg_ioctl(struct mtd_info *mtd,
         switch (a.op) {
         case BLKPG_ADD_PARTITION:
 
+                /* Only master mtd device must be used to add partitions */
+                if (mtd_is_partition(mtd))
+                        return -EINVAL;
+
                 return mtd_add_partition(mtd, p.devname, p.start, p.length);
 
         case BLKPG_DEL_PARTITION:
@@ -601,6 +601,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
         }
 
         case MEMGETINFO:
+                memset(&info, 0, sizeof(info));
                 info.type       = mtd->type;
                 info.flags      = mtd->flags;
                 info.size       = mtd->size;
@@ -609,7 +610,6 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
                 info.oobsize    = mtd->oobsize;
                 /* The below fields are obsolete */
                 info.ecctype    = -1;
-                info.eccsize    = 0;
                 if (copy_to_user(argp, &info, sizeof(struct mtd_info_user)))
                         return -EFAULT;
                 break;