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From: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 2/3] drivers/gpio/pm8916_gpio.c: Make pid be uint32_t
Date: Mon, 18 Apr 2016 22:24:20 +0200	[thread overview]
Message-ID: <57154274.9020705@gmail.com> (raw)
In-Reply-To: <5715423C.9060700@gmail.com>

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On 18.04.2016 22:23, Mateusz Kulikowski wrote:
> Hi,
> 
> Sorry for slow reply.
> 
> On 12.04.2016 21:11, Tom Rini wrote:
>> If get_dev_addr fails it will return FDT_ADDR_T_NONE and:
>>>>>     "priv->pid == 4294967295U" is always false regardless of the values of its operands. This occurs as the logical operand of if.
> 
>> Cc: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
>> Reported-by: Coverity (CID: 143913)
> [...]
> 
>> -	uint16_t pid; /* Peripheral ID on SPMI bus */
>> +	uint32_t pid; /* Peripheral ID on SPMI bus */
>>  };
> 
>>  static int pm8916_gpio_set_direction(struct udevice *dev, unsigned offset,
> 
> 
> Note applies to two patches in this series (pm8916_gpio.c and pm8916.c)
> 
> I think (now, when the coverity pointed out mistake) that we should add
> in that case check if pid fits in 16-bits, as this is maximum pid value on spmi bus.
> 
> This checks should be done in pm8916_gpio_probe() and pm8916_probe().
> 
> Would you like to do it in your series or want me to post another patch on top of them?

Or even better - leave it as uint16_t and do check & cast in probe()

Matuesz
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  reply	other threads:[~2016-04-18 20:24 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-12 19:11 [U-Boot] [PATCH 1/3] drivers/tpm/tpm_tis_sandbox.c: Fix uninitialized variable use Tom Rini
2016-04-12 19:11 ` [U-Boot] [PATCH 2/3] drivers/gpio/pm8916_gpio.c: Make pid be uint32_t Tom Rini
2016-04-18 20:23   ` Mateusz Kulikowski
2016-04-18 20:24     ` Mateusz Kulikowski [this message]
2016-04-20 21:26       ` Tom Rini
2016-04-20 21:25     ` Tom Rini
2016-04-22 14:12       ` Mateusz Kulikowski
2016-04-21 11:23   ` [U-Boot] [U-Boot, " Tom Rini
2016-04-12 19:11 ` [U-Boot] [PATCH 3/3] drivers/power/pmic/pm8916.c: Make usid " Tom Rini
2016-04-21 11:23   ` [U-Boot] [U-Boot, " Tom Rini
2016-04-15 14:12 ` [U-Boot] [PATCH 1/3] drivers/tpm/tpm_tis_sandbox.c: Fix uninitialized variable use Simon Glass
2016-04-15 15:44   ` Simon Glass

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