linux-kernel - Re: [alsa-devel] [PATCH] soundwire: bus: set initial value to port

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Date:   Tue, 3 Sep 2019 08:54:37 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Bard liao <yung-chuan.liao@...ux.intel.com>,
        alsa-devel@...a-project.org
Cc:     tiwai@...e.de, gregkh@...uxfoundation.org,
        Blauciak@...a-project.org, linux-kernel@...r.kernel.org,
        vkoul@...nel.org, broonie@...nel.org, bard.liao@...el.com
Subject: Re: [alsa-devel] [PATCH] soundwire: bus: set initial value to
 port_status



On 8/29/19 1:11 PM, Bard liao wrote:
> From: Bard Liao <yung-chuan.liao@...ux.intel.com>
> 
> port_status[port_num] are assigned for each port_num in some if
> conditions. So some of the port_status may not be initialized.

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>

> Signed-off-by: Bard Liao <yung-chuan.liao@...ux.intel.com>
> ---
>   drivers/soundwire/bus.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
> index f6a1e4b4813d..33f41b3e642e 100644
> --- a/drivers/soundwire/bus.c
> +++ b/drivers/soundwire/bus.c
> @@ -835,7 +835,7 @@ static int sdw_handle_port_interrupt(struct sdw_slave *slave,
>   static int sdw_handle_slave_alerts(struct sdw_slave *slave)
>   {
>   	struct sdw_slave_intr_status slave_intr;
> -	u8 clear = 0, bit, port_status[15];
> +	u8 clear = 0, bit, port_status[15] = {0};
>   	int port_num, stat, ret, count = 0;
>   	unsigned long port;
>   	bool slave_notify = false;
>