From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Mon, 5 Dec 2011 12:01:07 +0000 (+0000)
Subject: mfd: Return an error on failed wm831x register writes
X-Git-Tag: firefly_0821_release~3680^2~3723^2~25
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5391b5c645a86d4657c2175acbf21c6461d34849;p=firefly-linux-kernel-4.4.55.git

mfd: Return an error on failed wm831x register writes

Got dropped in the regmap conversion.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---

diff --git a/drivers/mfd/wm831x-core.c b/drivers/mfd/wm831x-core.c
index 3b761893f9ba..f5e54fae8ada 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;