[PATCH] regulator: core: Don't corrupt display when printing uV offsets

From: Mark Brown
Date: Tue Jun 09 2015 - 14:55:23 EST


We weren't taking into account the already used buffer when telling
sprintf() where to print to.

Reported-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
drivers/regulator/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index f6989485c382..5ec894e9f3e4 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -801,7 +801,7 @@ static void print_constraints(struct regulator_dev *rdev)
}

if (constraints->uV_offset)
- count += sprintf(buf, "%dmV offset ",
+ count += sprintf(buf + count, "%dmV offset ",
constraints->uV_offset / 1000);

if (constraints->min_uA && constraints->max_uA) {
--
2.1.4

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