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

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Message-Id: <1433876083-30046-1-git-send-email-broonie@kernel.org>
Date:	Tue,  9 Jun 2015 19:54:43 +0100
From:	Mark Brown <broonie@...nel.org>
To:	linux-kernel@...r.kernel.org
Cc:	Stefan Wahren <stefan.wahren@...e.com>,
	Mark Brown <broonie@...nel.org>
Subject: [PATCH] regulator: core: Don't corrupt display when printing uV offsets

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

Reported-by: Stefan Wahren <stefan.wahren@...e.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
---
 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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