mtd: introduce mtd_is_locked interface

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

3 files changed, 8 insertions, 4 deletions

diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index fe09cd2a4540..6d598b23cf3a 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -852,7 +852,7 @@ static int mtdchar_ioctl(struct file *file, u_int cmd, u_long arg)
                 if (!mtd->is_locked)
                         ret = -EOPNOTSUPP;
                 else
-                        ret = mtd->is_locked(mtd, einfo.start, einfo.length);
+                        ret = mtd_is_locked(mtd, einfo.start, einfo.length);
                 break;
         }
 
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index d65af3752331..ad487fcd423f 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -295,7 +295,7 @@ static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
         struct mtd_part *part = PART(mtd);
         if ((len + ofs) > mtd->size)
                 return -EINVAL;
-        return part->master->is_locked(part->master, ofs + part->offset, len);
+        return mtd_is_locked(part->master, ofs + part->offset, len);
 }
 
 static void part_sync(struct mtd_info *mtd)
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index f30c35886f7c..8b9901986c86 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -209,14 +209,13 @@ struct mtd_info {
         void (*sync) (struct mtd_info *mtd);
         int (*lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
         int (*unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
+        int (*is_locked) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
 
         /* Backing device capabilities for this device
          * - provides mmap capabilities
          */
         struct backing_dev_info *backing_dev_info;
 
-        int (*is_locked) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
-
         /* Power Management functions */
         int (*suspend) (struct mtd_info *mtd);
         void (*resume) (struct mtd_info *mtd);
@@ -394,6 +393,11 @@ static inline int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
         return mtd->unlock(mtd, ofs, len);
 }
 
+static inline int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
+{
+        return mtd->is_locked(mtd, ofs, len);
+}
+
 static inline struct mtd_info *dev_to_mtd(struct device *dev)
 {
         return dev ? dev_get_drvdata(dev) : NULL;