Messages in this thread | | | Date | Fri, 16 Apr 2004 22:32:44 +0100 | From | Russell King <> | Subject | Re: NFS thinko |
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On Fri, Apr 16, 2004 at 10:16:28PM +0100, Dave Jones wrote: > Dereferencing 'exp' before the check for NULL.
Hmm. If we're referencing 'ek' to get at exp, 'ek' isn't an error, so it shouldn't be passed into PTR_ERR().
> --- linux-2.6.5/include/linux/nfsd/export.h~ 2004-04-16 22:13:28.000000000 +0100 > +++ linux-2.6.5/include/linux/nfsd/export.h 2004-04-16 22:14:21.000000000 +0100 > @@ -118,13 +118,15 @@ > if (ek && !IS_ERR(ek)) { > struct svc_export *exp = ek->ek_export; > int err; > + if (!exp) > + goto out; > cache_get(&exp->h); > expkey_put(&ek->h, &svc_expkey_cache); > - if (exp && > - (err = cache_check(&svc_export_cache, &exp->h, reqp))) > + if (err = cache_check(&svc_export_cache, &exp->h, reqp)) > exp = ERR_PTR(err); > return exp; > } else > +out: > return ERR_PTR(PTR_ERR(ek)); > }
-- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/ 2.6 Serial core - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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