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-rw-r--r--drivers/mtd/mtdchar.c2
-rw-r--r--drivers/mtd/sm_ftl.c4
-rw-r--r--include/linux/mtd/mtd.h5
3 files changed, 8 insertions, 3 deletions
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 83b0c82e9c9..c501eec17b3 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -1004,7 +1004,7 @@ static int mtdchar_ioctl(struct file *file, u_int cmd, u_long arg)
break;
case MTD_FILE_MODE_RAW:
- if (!mtd->read_oob || !mtd->write_oob)
+ if (!mtd_has_oob(mtd))
return -EOPNOTSUPP;
mfi->mode = arg;
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index 4ec2af7fb84..072ed5970e2 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -645,8 +645,8 @@ int sm_get_media_info(struct sm_ftl *ftl, struct mtd_info *mtd)
if (!ftl->smallpagenand && mtd->oobsize < SM_OOB_SIZE)
return -ENODEV;
- /* We use these functions for IO */
- if (!mtd->read_oob || !mtd->write_oob)
+ /* We use OOB */
+ if (!mtd_has_oob(mtd))
return -ENODEV;
/* Find geometry information */
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index f0dd5a305b8..478701566ba 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -454,6 +454,11 @@ static inline uint32_t mtd_mod_by_ws(uint64_t sz, struct mtd_info *mtd)
return do_div(sz, mtd->writesize);
}
+static inline int mtd_has_oob(const struct mtd_info *mtd)
+{
+ return mtd->read_oob && mtd->write_oob;
+}
+
/* Kernel-side ioctl definitions */
struct mtd_partition;