linux-kernel - Re: [PATCH] arm/mach-omap2: Fix refcount leak bug in omap

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Message-ID: <YrqKKBflkZKRHwXW@atomide.com>
Date:   Tue, 28 Jun 2022 07:57:12 +0300
From:   Tony Lindgren <tony@...mide.com>
To:     Liang He <windhl@....com>
Cc:     linux@...linux.org.uk, linux-omap@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm/mach-omap2: Fix refcount leak bug in omap_hwmod.c

Hi,

* Liang He <windhl@....com> [220618 04:43]:
> In _init(), of_find_node_by_name() will return a node pointer with
> refcount incremented. We should use of_node_put() in fail path or
> when it is not used anymore.
> 
> NOTE: As the ref will be passed from 'bus' to 'np' by the xx_lookup(),
> in normal exit path, we should call of_node_put() at the end use of 'np',
> not the end use of 'bus'.

Looks correct to me. What about missing of_node_put() for
of_get_next_child() also in the _init() function?

Regards,

Tony