mfd: Fix wm8994_device_init() return value

wm8994_device_init() will return 0 in the case of kzalloc fail
in current implementation.
This patch fixes the return value.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index ec71c9368906..69533f5ab03e 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -326,8 +326,10 @@ static int wm8994_device_init(struct wm8994 *wm8994, unsigned long id, int irq)
         wm8994->supplies = kzalloc(sizeof(struct regulator_bulk_data) *
                                    ARRAY_SIZE(wm8994_main_supplies),
                                    GFP_KERNEL);
-        if (!wm8994->supplies)
+        if (!wm8994->supplies) {
+                ret = -ENOMEM;
                 goto err;
+        }
 
         for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++)
                 wm8994->supplies[i].supply = wm8994_main_supplies[i];