[PATCH] pinctrl: single: check function mask to be non-zero

[Tom Rini]

On Thu, Apr 22, 2021 at 06:35:58PM +0200, Dario Binacchi wrote:

> Otherwise it can generate a division by zero, which has an undefined
> behavior.
> 
> Signed-off-by: Dario Binacchi <dariobin at libero.it>

Applied to u-boot/master, thanks!

-- 
Tom
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