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Message-Id: <20161219.110420.1570801461162159172.davem@davemloft.net> Date: Mon, 19 Dec 2016 11:04:20 -0500 (EST) From: David Miller <davem@...emloft.net> To: arvind.yadav.cs@...il.com Cc: peter.chen@....com, fw@...len.de, david.daney@...ium.com, f.fainelli@...il.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [v3] net: ethernet: cavium: octeon: octeon_mgmt: Handle return NULL error from devm_ioremap From: Arvind Yadav <arvind.yadav.cs@...il.com> Date: Thu, 15 Dec 2016 00:33:30 +0530 > Here, If devm_ioremap will fail. It will return NULL. > Kernel can run into a NULL-pointer dereference. > This error check will avoid NULL pointer dereference. > > Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com> Since ioremap() is in fact designed to possibly fail, we do need to always check it's return value. So this change is correct and I have applied it to the 'net' tree. Thanks.
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