linux-kernel - [PATCH] regulator: s2mps11: Fix GPIO descriptor initialization

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Date:   Tue, 20 Nov 2018 13:38:44 +0100
From:   Marek Szyprowski <m.szyprowski@...sung.com>
To:     linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Cc:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Sangbeom Kim <sbkim73@...sung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-samsung-soc@...r.kernel.org
Subject: [PATCH] regulator: s2mps11: Fix GPIO descriptor initialization

GPIO descriptor array must be zero initialized to ensure that core will
properly handle also the case when no external GPIO pin is defined.

Fixes: 1c984942f0a4 ("regulator: s2mps11: Pass descriptor instead of GPIO number")
Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
---
This fixes broken eMMC boot on Artik, Rinato and Odroid XU3/XU4/HC1
boards.
---
 drivers/regulator/s2mps11.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index 6fec45897194..63e66f485cc0 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -1134,9 +1134,8 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	s2mps11->ext_control_gpiod = devm_kmalloc_array(&pdev->dev,
-			rdev_num, sizeof(*s2mps11->ext_control_gpiod),
-			GFP_KERNEL);
+	s2mps11->ext_control_gpiod = devm_kcalloc(&pdev->dev, rdev_num,
+			       sizeof(*s2mps11->ext_control_gpiod), GFP_KERNEL);
 	if (!s2mps11->ext_control_gpiod)
 		return -ENOMEM;
 
-- 
2.17.1