netdev - Re: sctp use-uninitialized warning in net-2.6.25

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Message-Id: <20080118.153715.167557482.davem@davemloft.net>
Date:	Fri, 18 Jan 2008 15:37:15 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	vladislav.yasevich@...com
Cc:	akpm@...ux-foundation.org, netdev@...r.kernel.org
Subject: Re: sctp use-uninitialized warning in net-2.6.25

From: Vlad Yasevich <vladislav.yasevich@...com>
Date: Fri, 18 Jan 2008 11:03:20 -0500

> We can do that, or move the declaration to the only block that uses it.
> Like this:
 ...
> @@ -466,6 +465,7 @@ sctp_disposition_t sctp_sf_do_5_1C_ack(const struct sctp_endpoint *ep,
>  	if (!sctp_verify_init(asoc, chunk->chunk_hdr->type,
>  			      (sctp_init_chunk_t *)chunk->chunk_hdr, chunk,
>  			      &err_chunk)) {
> +		sctp_error_t error;
>  
>  		SCTP_INC_STATS(SCTP_MIB_ABORTEDS);
> 

It's still potentially used uninitialized.

It will only get set if err_chunk is non-zero.

But even if err_chunk is zero, we try to use this
variable.

That's the whole problem, simply moving the variable to
a different scope is not going to fix anything.
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