Commit 79019190 authored Jan 17, 2014 by Lad, Prabhakar Committed by Mauro Carvalho Chehab Feb 24, 2014

[media] mt9v032: Check return value of clk_prepare_enable/clk_set_rate



clk_set_rate(), clk_prepare_enable() functions can fail, so check the return
values to avoid surprises.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

parent ee2d16d7

drivers/media/i2c/mt9v032.c

+8 −2

Original line number	Diff line number	Diff line
		@@ -317,8 +317,14 @@ static int mt9v032_power_on(struct mt9v032 *mt9v032)
		struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev);
		int ret;

		clk_set_rate(mt9v032->clk, mt9v032->sysclk);
		clk_prepare_enable(mt9v032->clk);
		ret = clk_set_rate(mt9v032->clk, mt9v032->sysclk);
		if (ret < 0)
		return ret;

		ret = clk_prepare_enable(mt9v032->clk);
		if (ret)
		return ret;

		udelay(1);

		/* Reset the chip and stop data read out */