linux-kernel - Re: [PATCH] mmc: mmc_spi: Adjust error handling in mmc_spi

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Date: Wed, 27 Dec 2023 18:56:45 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Markus Elfring <Markus.Elfring@....de>
Cc: linux-mmc@...r.kernel.org, kernel-janitors@...r.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Yang Yingliang <yangyingliang@...wei.com>,
	LKML <linux-kernel@...r.kernel.org>, cocci@...ia.fr
Subject: Re: [PATCH] mmc: mmc_spi: Adjust error handling in mmc_spi_probe()

On Wed, Dec 27, 2023 at 12:50:50PM +0100, Markus Elfring wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Wed, 27 Dec 2023 12:23:20 +0100
> 
> The kfree() function was called in one case by
> the mmc_spi_probe() function during error handling
> even if the passed variable contained a null pointer.
> This issue was detected by using the Coccinelle software.

> * Thus return directly after a call of the function “kmalloc” failed
>   at the beginning.
> 
> * Move an error code assignment into an if branch.

How is this one better?

-- 
With Best Regards,
Andy Shevchenko