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Commit 97ddf1c2 authored by Yuanjun Gong's avatar Yuanjun Gong Committed by Greg Kroah-Hartman
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fbdev: mmp: fix value check in mmphw_probe() 



commit 0872b2c0abc0e84ac82472959c8e14e35277549c upstream.

in mmphw_probe(), check the return value of clk_prepare_enable()
and return the error code if clk_prepare_enable() returns an
unexpected value.

Fixes: d63028c3 ("video: mmp display controller support")
Signed-off-by: default avatarYuanjun Gong <ruc_gongyuanjun@163.com>
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3259e2d8

drivers/video/fbdev/mmp/hw/mmp_ctrl.c

+3 −1
Original line number Diff line number Diff line
@@ -510,7 +510,9 @@ static int mmphw_probe(struct platform_device *pdev) 
		ret = -ENOENT;

		goto failed;

	}

	clk_prepare_enable(ctrl->clk);

	ret = clk_prepare_enable(ctrl->clk);

	if (ret)

		goto failed;



	/* init global regs */

	ctrl_set_default(ctrl);