linux-kernel - Re: [PATCH v2] clk: bcm: rpi: Add NULL check in raspberrypi_clk

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Message-ID: <59c3c160b99f2cfce17d644534591952@kernel.org>
Date: Tue, 06 May 2025 14:42:14 -0700
From: Stephen Boyd <sboyd@...nel.org>
To: Henry Martin <bsdhenrymartin@...il.com>, dave.stevenson@...pberrypi.com
Cc: mturquette@...libre.com, florian.fainelli@...adcom.com, bcm-kernel-feedback-list@...adcom.com, popcornmix@...il.com, mripard@...nel.org, u.kleine-koenig@...libre.com, linux-clk@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, nathan@...nel.org, Henry Martin <bsdhenrymartin@...il.com>
Subject: Re: [PATCH v2] clk: bcm: rpi: Add NULL check in raspberrypi_clk_register()

Quoting Henry Martin (2025-04-01 19:05:13)
> devm_kasprintf() returns NULL when memory allocation fails. Currently,
> raspberrypi_clk_register() does not check for this case, which results
> in a NULL pointer dereference.
> 
> Add NULL check after devm_kasprintf() to prevent this issue.
> 
> Fixes: 93d2725affd6 ("clk: bcm: rpi: Discover the firmware clocks")
> Signed-off-by: Henry Martin <bsdhenrymartin@...il.com>
> Reviewed-by: Dave Stevenson <dave.stevenson@...pberrypi.com>
> ---

Applied to clk-next