diff options
| author | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2011-12-28 19:50:34 +0400 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-01-09 22:26:14 +0400 |
| commit | dac2639f9833e858139d7e07f6ee45fb2191a9f2 (patch) | |
| tree | 8927b0959d8415e419f321a8b43974ed8834b680 /include | |
| parent | 016c1291ce70a22f15f666441a4fd2f0b450375b (diff) | |
| download | linux-dac2639f9833e858139d7e07f6ee45fb2191a9f2.tar.xz | |
mtd: do not use mtd->read_oob directly
Instead of checking whether 'mtd->read_oob' is defined, just call
'mtd_read_oob()' and handle the '-EOPNOTSUPP' error which will be returned
if the function is undefined.
Additionally, make 'mtd_write_oob()' return '-EOPNOTSUPP' if the function
is undefined.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mtd/mtd.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index b72964049cdc..721a63ffeb96 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -320,6 +320,8 @@ static inline int mtd_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops) { ops->retlen = ops->oobretlen = 0; + if (!mtd->read_oob) + return -EOPNOTSUPP; return mtd->read_oob(mtd, from, ops); } @@ -327,6 +329,8 @@ static inline int mtd_write_oob(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops) { ops->retlen = ops->oobretlen = 0; + if (!mtd->write_oob) + return -EOPNOTSUPP; return mtd->write_oob(mtd, to, ops); } |