linux-kernel - Re: [patch] mfd: lp8788-irq: uninitialized variable in irq handler

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Date:	Mon, 21 Mar 2016 11:54:57 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	Dan Carpenter <dan.carpenter@...cle.com>
Cc:	Milo Kim <milo.kim@...com>, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: Re: [patch] mfd: lp8788-irq: uninitialized variable in irq handler

On Fri, 11 Mar 2016, Dan Carpenter wrote:

> Instead to being true/false, the "handled" is true/uninitialized.
> Presumably this doesn't cause that many problems in real life because
> normally we handle the IRQ.
> 
> Fixes: eea6b7cc53aa ('mfd: Add lp8788 mfd driver')
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

I've fixed the $SUBJECT line to be more consistent with the subsystem
style for you this time.  Please pay more attention to that in the
future.

`git log --oneline -- $SUBSYSTEM` helps with this.

[I think I recall a conversation with you about this before, and you
said it was part of your submission process?]

Patch applied, thanks.
 
> diff --git a/drivers/mfd/lp8788-irq.c b/drivers/mfd/lp8788-irq.c
> index c7a9825..792d51b 100644
> --- a/drivers/mfd/lp8788-irq.c
> +++ b/drivers/mfd/lp8788-irq.c
> @@ -112,7 +112,7 @@ static irqreturn_t lp8788_irq_handler(int irq, void *ptr)
>  	struct lp8788_irq_data *irqd = ptr;
>  	struct lp8788 *lp = irqd->lp;
>  	u8 status[NUM_REGS], addr, mask;
> -	bool handled;
> +	bool handled = false;
>  	int i;
>  
>  	if (lp8788_read_multi_bytes(lp, LP8788_INT_1, status, NUM_REGS))

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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