From: Yuanjun Gong <ruc_gongyuanjun@163.com>
Date: Fri, 28 Jul 2023 01:03:18 +0800
Subject: fbdev: mmp: fix value check in mmphw_probe()
Git-commit: 0872b2c0abc0e84ac82472959c8e14e35277549c
Patch-mainline: v6.5-rc7
References: git-fixes
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 <ruc_gongyuanjun@163.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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 51fbf02a0343..76b50b6c98ad 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);
--
2.35.3