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Date: Thu, 11 Mar 2010 13:33:29 +0300
From: Dan Carpenter <error27@...il.com>
To: Greg Rose <gregory.v.rose@...el.com>
Cc: netdev@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: ixgbevf: bug in error handling
Hi Greg,
drivers/net/ixgbevf/ixgbevf_main.c +3013 ixgbevf_tx_map(96) warn: unsigned 'i' is never less than zero.
3010 while (count >= 0) {
3011 count--;
3012 i--;
3013 if (i < 0)
3014 i += tx_ring->count;
There is a problem here because i is unsigned and just wraps
around instead of being less than 0.
3015 tx_buffer_info = &tx_ring->tx_buffer_info[i];
3016 ixgbevf_unmap_and_free_tx_resource(adapter, tx_buffer_info);
3017 }
regards,
dan carpenter
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