linux-kernel - Re: [PATCH][bluetooth-next][V2] ieee802154: ca8210: Add checks for kmalloc allocation failures

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Message-Id: <80D11AF4-0CD7-4FEE-AF17-AD79FBFBD294@holtmann.org>
Date:   Wed, 29 Mar 2017 20:54:53 +0200
From:   Marcel Holtmann <marcel@...tmann.org>
To:     Colin King <colin.king@...onical.com>
Cc:     Harry Morris <h.morris@...coda.com>, linuxdev@...coda.com,
        Alexander Aring <aar@...gutronix.de>,
        Stefan Schmidt <stefan@....samsung.com>,
        linux-wpan@...r.kernel.org, netdev@...r.kernel.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][bluetooth-next][V2] ieee802154: ca8210: Add checks for
 kmalloc allocation failures

Hi Colin,

> Ensure we don't end up with a null pointer dereferences by checking
> for for allocation failures.  Allocate by sizeof(*ptr) rather than
> the type to fix checkpack warnings.  Also merge multiple lines into
> one line for the kmalloc call.
> 
> Detected by CoverityScan, CID#1422435 ("Dereference null return value")
> 
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
> drivers/net/ieee802154/ca8210.c | 18 ++++++++++--------
> 1 file changed, 10 insertions(+), 8 deletions(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel