[PATCH] mfd: Return an error on failed wm831x register writes

[Mark Brown]

Got dropped in the regmap conversion.

Signed-off-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
 drivers/mfd/wm831x-core.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/mfd/wm831x-core.c b/drivers/mfd/wm831x-core.c
index 3b76189..f5e54fa 100644
--- a/drivers/mfd/wm831x-core.c
+++ b/drivers/mfd/wm831x-core.c
@@ -559,6 +559,8 @@ static int wm831x_write(struct wm831x *wm831x, unsigned short reg,
 		dev_vdbg(wm831x->dev, "Write %04x to R%d(0x%x)\n",
 			 buf[i], reg + i, reg + i);
 		ret = regmap_write(wm831x->regmap, reg + i, buf[i]);
+		if (ret != 0)
+			return ret;
 	}
 
 	return 0;
-- 
1.7.7.3

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