mtd: blktrans: change blktrans_getgeo return value
authorWenlin Kang <wenlin.kang@windriver.com>
Thu, 21 May 2015 06:49:38 +0000 (14:49 +0800)
committerBrian Norris <computersforpeace@gmail.com>
Thu, 21 May 2015 07:26:41 +0000 (00:26 -0700)
commit50183936254b76997d222cd36bac997ebf8115de
tree2ca594357a439c9b630aebf693cf629708c77d30
parent8eeb4c521a8047ea73da0d6eb2d87a7f60cdd99a
mtd: blktrans: change blktrans_getgeo return value

Modify function blktrans_getgeo()'s return value to -EOPNOTSUPP when
dev->tr->getgeo == NULL.

We shouldn't make the return value to 0 when dev->tr->getgeo == NULL,
because the function blktrans_getgeo() has an output value "hd_geometry"
which is usually used by some application, if returns 0 (i.e.,
"success"), it will make some application get the wrong information.

Signed-off-by: Wenlin Kang <wenlin.kang@windriver.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
drivers/mtd/mtd_blkdevs.c