[PATCH] input: pm8xxx-vibrator: fix a potential NULL pointer dereference

[Kangjie Lu]

In case of_device_get_match_data fails to find the matched data,
returns -ENODEV

Signed-off-by: Kangjie Lu <k...@umn.edu>
---
 drivers/input/misc/pm8xxx-vibrator.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/input/misc/pm8xxx-vibrator.c 
b/drivers/input/misc/pm8xxx-vibrator.c
index 7dd1c1fbe42a..740e59c11808 100644
--- a/drivers/input/misc/pm8xxx-vibrator.c
+++ b/drivers/input/misc/pm8xxx-vibrator.c
@@ -196,6 +196,8 @@ static int pm8xxx_vib_probe(struct platform_device *pdev)
        vib->vib_input_dev = input_dev;
 
        regs = of_device_get_match_data(&pdev->dev);
+       if (unlikely(!regs))
+               return -ENODEV;
 
        /* operate in manual mode */
        error = regmap_read(vib->regmap, regs->drv_addr, &val);
-- 
2.17.1