linux-kernel - Re: [PATCH] staging: rtl8192 Check for Null return from dev_skb

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Date:	Thu, 19 Jun 2014 13:51:43 -0700
From:	Joe Perches <joe@...ches.com>
To:	Nick Krause <xerofoify@...il.com>
Cc:	Greg KH <gregkh@...uxfoundation.org>, lisa@...apiadmin.com,
	Valentina Manea <valentina.manea.m@...il.com>,
	ben@...adent.org.uk, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: rtl8192 Check for Null return from
 dev_skb_alloc

On Thu, 2014-06-19 at 16:20 -0400, Nick Krause wrote:
> Hey Guys,
> So Sorry about wasting your time with bad patchs.
> I feel bad about that. I hope this patch is O.K.
> now. :(

It's not.

> > diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
[]
> > @@ -59,7 +58,9 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address,
> >                         bLastIniPkt = 1;
> >
> >                 }
> > -
> > +               skb  = dev_alloc_skb(frag_length + 4);
> > +               if (!skb)
> > +                       return false;
> >                 skb  = dev_alloc_skb(frag_length + 4);

You're still wasting time and not thoroughly
reading your own patches.

You've duplicated the dev_alloc_skb line.


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