aboutsummaryrefslogtreecommitdiff
path: root/drivers/mtd/mtdchar.c
diff options
context:
space:
mode:
authorArtem Bityutskiy <artem.bityutskiy@linux.intel.com>2011-12-30 14:31:57 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-01-09 18:26:10 +0000
commitcd621274b0ec747db8dedbf857624c067f481976 (patch)
tree1d86dd22d4133fc45311168d1b012e8103b4f875 /drivers/mtd/mtdchar.c
parent10934478e44d9a5a7b16dadd89094fb608cf101e (diff)
downloadlinux-cd621274b0ec747db8dedbf857624c067f481976.tar.gz
mtd: do not use mtd->get_unmapped_area directly
Remove direct usage of mtd->get_unmapped_area. Instead, just call 'mtd_get_unmapped_area()' which will return -EOPNOTSUPP if the function is not implemented and test for this error code. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/mtdchar.c')
-rw-r--r--drivers/mtd/mtdchar.c26
1 files changed, 11 insertions, 15 deletions
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index c501eec17b3..55f0961103a 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -1124,25 +1124,21 @@ static unsigned long mtdchar_get_unmapped_area(struct file *file,
{
struct mtd_file_info *mfi = file->private_data;
struct mtd_info *mtd = mfi->mtd;
+ unsigned long offset;
+ int ret;
- if (mtd->get_unmapped_area) {
- unsigned long offset;
-
- if (addr != 0)
- return (unsigned long) -EINVAL;
-
- if (len > mtd->size || pgoff >= (mtd->size >> PAGE_SHIFT))
- return (unsigned long) -EINVAL;
+ if (addr != 0)
+ return (unsigned long) -EINVAL;
- offset = pgoff << PAGE_SHIFT;
- if (offset > mtd->size - len)
- return (unsigned long) -EINVAL;
+ if (len > mtd->size || pgoff >= (mtd->size >> PAGE_SHIFT))
+ return (unsigned long) -EINVAL;
- return mtd_get_unmapped_area(mtd, len, offset, flags);
- }
+ offset = pgoff << PAGE_SHIFT;
+ if (offset > mtd->size - len)
+ return (unsigned long) -EINVAL;
- /* can't map directly */
- return (unsigned long) -ENOSYS;
+ ret = mtd_get_unmapped_area(mtd, len, offset, flags);
+ return ret == -EOPNOTSUPP ? -ENOSYS : ret;
}
#endif