From: Przemyslaw Marczak <p.marczak@samsung.com>
Date: Fri, 28 Nov 2014 13:37:35 +0000 (+0100)
Subject: exynos4-dt: check pointer returned by pmic_get()
X-Git-Tag: submit/tizen/20141210.090340^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=53b879c21eb9273d7f02183d640a8bdb36a0b00d;p=platform%2Fkernel%2Fu-boot.git

exynos4-dt: check pointer returned by pmic_get()

Change-Id: I327ba399d83cc1eebdfdf9a7b239579d760c1c57
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
---

diff --git a/board/samsung/common/exynos4-dt.c b/board/samsung/common/exynos4-dt.c
index 837699806e..b0ba18917b 100644
--- a/board/samsung/common/exynos4-dt.c
+++ b/board/samsung/common/exynos4-dt.c
@@ -578,6 +578,9 @@ static int pmic_init_max77686(void)
 {
 	struct pmic *p = pmic_get("MAX77686_PMIC");
 
+	if (!p)
+		return -ENODEV;
+
 	if (pmic_probe(p))
 		return -ENODEV;
 
@@ -820,6 +823,8 @@ int mipi_power(void)
 		return 0;
 
 	p = pmic_get("MAX77686_PMIC");
+	if (!p)
+		return -ENODEV;
 
 	/* LDO8 VMIPI_1.0V_AP */
 	max77686_set_ldo_mode(p, 8, OPMODE_ON);
@@ -837,6 +842,8 @@ void exynos_lcd_power_on(void)
 		return;
 
 	p = pmic_get("MAX77686_PMIC");
+	if (!p)
+		return;
 
 	/* LCD_2.2V_EN: GPC0[1] */
 	gpio_set_pull(EXYNOS4X12_GPIO_C01, S5P_GPIO_PULL_UP);