From 0872b2c0abc0e84ac82472959c8e14e35277549c Mon Sep 17 00:00:00 2001 From: Yuanjun Gong Date: Fri, 28 Jul 2023 01:03:18 +0800 Subject: [PATCH] fbdev: mmp: fix value check in mmphw_probe() 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: d63028c38905 ("video: mmp display controller support") Signed-off-by: Yuanjun Gong Signed-off-by: Helge Deller --- drivers/video/fbdev/mmp/hw/mmp_ctrl.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/video/fbdev/mmp/hw/mmp_ctrl.c b/drivers/video/fbdev/mmp/hw/mmp_ctrl.c index 51fbf02..76b50b6 100644 --- a/drivers/video/fbdev/mmp/hw/mmp_ctrl.c +++ b/drivers/video/fbdev/mmp/hw/mmp_ctrl.c @@ -519,7 +519,9 @@ static int mmphw_probe(struct platform_device *pdev) "unable to get clk %s\n", mi->clk_name); goto failed; } - clk_prepare_enable(ctrl->clk); + ret = clk_prepare_enable(ctrl->clk); + if (ret) + goto failed; /* init global regs */ ctrl_set_default(ctrl); -- 2.7.4