linux-kernel - Re: [PATCH v2 03/15] ARM: exynos: fix a leaked reference by adding missing of_node

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Message-ID: <20190319203946.GB16150@kozik-lap>
Date:   Tue, 19 Mar 2019 21:39:46 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Wen Yang <wen.yang99@....com.cn>
Cc:     linux-kernel@...r.kernel.org, wang.yi59@....com.cn,
        Russell King <linux@...linux.org.uk>,
        Kukjin Kim <kgene@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH v2 03/15] ARM: exynos: fix a leaked reference by adding
 missing of_node_put

On Tue, Mar 05, 2019 at 07:33:54PM +0800, Wen Yang wrote:
> The call to of_get_next_child returns a node pointer with refcount
> incremented thus it must be explicitly decremented after the last
> usage.
> 
> Detected by coccinelle with the following warnings:
> ./arch/arm/mach-exynos/firmware.c:201:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 193, but without a corresponding object release within this function.
> ./arch/arm/mach-exynos/firmware.c:204:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 193, but without a corresponding object release within this function.
> ./arch/arm/mach-exynos/suspend.c:642:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 634, but without a corresponding object release within this function.
> 
> Signed-off-by: Wen Yang <wen.yang99@....com.cn>
> Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
> Cc: Russell King <linux@...linux.org.uk>
> Cc: Kukjin Kim <kgene@...nel.org>
> Cc: Krzysztof Kozlowski <krzk@...nel.org>
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-samsung-soc@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> ---

Thanks, applied, with adjustments in commit msg and removal of Florian's
reviewed-by tag (I cannot find his email with review).

Best regards,
Krzysztof