linux-kernel - Re: [PATCH] Add checks for kmalloc allocation failures

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Message-ID: <1490804511.24891.37.camel@edumazet-glaptop3.roam.corp.google.com>
Date:   Wed, 29 Mar 2017 09:21:51 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
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] Add checks for kmalloc allocation failures

On Wed, 2017-03-29 at 16:54 +0100, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> 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")

OK, but could you change patch title to be less generic ?

Also, what tree is this patch targeting ?

# ls -l drivers/net/ieee802154/ca8210.c 
ls: cannot access drivers/net/ieee802154/ca8210.c: No such file or
directory

Thanks.