mfd: hi655x-pmic: Fix missing return value check for devm_regmap_init_mmio_clk

Since devm_regmap_init_mmio_clk can fail, add return value checking.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Chen Feng <puck.chen@hisilicon.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/mfd/hi655x-pmic.c b/drivers/mfd/hi655x-pmic.c
index 96c07fa1802a..6693f74aa6ab 100644
--- a/drivers/mfd/hi655x-pmic.c
+++ b/drivers/mfd/hi655x-pmic.c
@@ -112,6 +112,8 @@ static int hi655x_pmic_probe(struct platform_device *pdev)
 
         pmic->regmap = devm_regmap_init_mmio_clk(dev, NULL, base,
                                                  &hi655x_regmap_config);
+        if (IS_ERR(pmic->regmap))
+                return PTR_ERR(pmic->regmap);
 
         regmap_read(pmic->regmap, HI655X_BUS_ADDR(HI655X_VER_REG), &pmic->ver);
         if ((pmic->ver < PMU_VER_START) || (pmic->ver > PMU_VER_END)) {