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 8376998..b0ba189 100644 (file)
--- 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);