From 86388d835e7f98a227e83530fa9b4953193df43a Mon Sep 17 00:00:00 2001 From: Arvind Yadav Date: Wed, 14 Jun 2017 17:40:56 +0200 Subject: [PATCH] video: fbdev: pxafb: Handle return value of clk_prepare_enable clk_prepare_enable() can fail here and we must check its return value. Signed-off-by: Arvind Yadav Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/video/fbdev/pxafb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c index b21a89b03fb4..c3d49e13643c 100644 --- a/drivers/video/fbdev/pxafb.c +++ b/drivers/video/fbdev/pxafb.c @@ -1436,7 +1436,10 @@ static void pxafb_enable_controller(struct pxafb_info *fbi) pr_debug("reg_lccr3 0x%08x\n", (unsigned int) fbi->reg_lccr3); /* enable LCD controller clock */ - clk_prepare_enable(fbi->clk); + if (clk_prepare_enable(fbi->clk)) { + pr_err("%s: Failed to prepare clock\n", __func__); + return; + } if (fbi->lccr0 & LCCR0_LCDT) return; -- 2.20.1