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video: fbdev: pxafb: Handle return value of clk_prepare_enable

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clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
This commit is contained in:
Arvind Yadav 2017-06-14 17:40:56 +02:00 committed by Bartlomiej Zolnierkiewicz
parent ac5b52d2a2
commit 86388d835e
1 changed files with 4 additions and 1 deletions
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5
drivers/video/fbdev/pxafb.c
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@ -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;