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regmap: debugfs: Fix reading in register field units 

At the moment, if the length of the register field format is
N bytes, we can only get anything meaningful back to userspace
by providing a buffer that is N + 2 bytes large.  Fix this
so we that we only need to provide a buffer of N bytes.

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Dimitris Papastamos 2013-02-07 10:51:56 +00:00 committed by Mark Brown
parent a3471469bc
commit f3eb83994c
1 changed files with 1 additions and 1 deletions
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2
drivers/base/regmap/regmap-debugfs.c
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@ -185,7 +185,7 @@ static ssize_t regmap_read_debugfs(struct regmap *map, unsigned int from,
/* If we're in the region the user is trying to read */
if (p >= *ppos) {
/* ...but not beyond it */
if (buf_pos + 1 + map->debugfs_tot_len >= count)
if (buf_pos + map->debugfs_tot_len > count)
break;
/* Format the register */