linux-kernel - [PATCH] regulator: isl9305: fix array size

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Message-Id: <20170409200505.10701-1-vincent.stehle@laposte.net>
Date:   Sun,  9 Apr 2017 22:05:05 +0200
From:   Vincent Stehlé <vincent.stehle@...oste.net>
To:     linux-kernel@...r.kernel.org
Cc:     Vincent Stehlé <vincent.stehle@...oste.net>,
        Mark Brown <broonie@...nel.org>
Subject: [PATCH] regulator: isl9305: fix array size

ISL9305_MAX_REGULATOR is the last index used to access the init_data[]
array, so we need to add one to this last index to obtain the necessary
array size.

This fixes the following smatch error:

  drivers/regulator/isl9305.c:160 isl9305_i2c_probe() error: buffer overflow 'pdata->init_data' 3 <= 3

Fixes: dec38b5ce6a9edb4 ("regulator: isl9305: Add Intersil ISL9305/H driver")
Signed-off-by: Vincent Stehlé <vincent.stehle@...oste.net>
Cc: Mark Brown <broonie@...nel.org>
---
 include/linux/platform_data/isl9305.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/platform_data/isl9305.h b/include/linux/platform_data/isl9305.h
index 1419133fa69e..4ac1a070af0a 100644
--- a/include/linux/platform_data/isl9305.h
+++ b/include/linux/platform_data/isl9305.h
@@ -24,7 +24,7 @@
 struct regulator_init_data;
 
 struct isl9305_pdata {
-	struct regulator_init_data *init_data[ISL9305_MAX_REGULATOR];
+	struct regulator_init_data *init_data[ISL9305_MAX_REGULATOR + 1];
 };
 
 #endif
-- 
2.11.0