function clk_prepare_enable may fail in ep93xxfb_probe, therefore, add a return value check to clk_prepare_enable and handle the error. Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@xxxxxxx> --- drivers/video/fbdev/ep93xx-fb.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/video/fbdev/ep93xx-fb.c b/drivers/video/fbdev/ep93xx-fb.c index 94fe52928be2..22158d9ca8dd 100644 --- a/drivers/video/fbdev/ep93xx-fb.c +++ b/drivers/video/fbdev/ep93xx-fb.c @@ -548,7 +548,9 @@ static int ep93xxfb_probe(struct platform_device *pdev) } ep93xxfb_set_par(info); - clk_prepare_enable(fbi->clk); + err = clk_prepare_enable(fbi->clk); + if (err) + goto failed_check; err = register_framebuffer(info); if (err) -- 2.17.1
