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mtd: introduce mtd_has_oob helper

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We are working in the direction of making sure that MTD clients to not
use 'mtd->func' pointers directly. In some places we want to know if
OOB operations are supported by an MTD device. Introduce 'mtd_has_oob()'
helper for these purposes.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Artem Bityutskiy
2011-12-28 18:35:07 +02:00
committed by David Woodhouse
parent 33c87b4a2c
commit fc002e3c32
3 changed files with 8 additions and 3 deletions
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4
drivers/mtd/sm_ftl.c
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@@ -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 */