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[PATCH] 3c59x: bounds checking for hw_checksums

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Add bounds checking to usage of hw_checksums module parameter array.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
John W. Linville 2005-11-07 00:58:05 -08:00 committed by Linus Torvalds
parent d9e46de34e
commit 32fb5f06db
1 changed files with 9 additions and 7 deletions
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16
drivers/net/3c59x.c
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@ -1513,9 +1513,10 @@ static int __devinit vortex_probe1(struct device *gendev,
dev->hard_start_xmit = boomerang_start_xmit;
/* Actually, it still should work with iommu. */
dev->features |= NETIF_F_SG;
if (((hw_checksums[card_idx] == -1) && (vp->drv_flags & HAS_HWCKSM)) ||
(hw_checksums[card_idx] == 1)) {
dev->features |= NETIF_F_IP_CSUM;
if (card_idx < MAX_UNITS &&
((hw_checksums[card_idx] == -1 && (vp->drv_flags & HAS_HWCKSM)) ||
hw_checksums[card_idx] == 1)) {
dev->features |= NETIF_F_IP_CSUM;
}
} else {
dev->hard_start_xmit = vortex_start_xmit;
@ -2791,10 +2792,11 @@ vortex_close(struct net_device *dev)
}
#if DO_ZEROCOPY
if ( vp->rx_csumhits &&
((vp->drv_flags & HAS_HWCKSM) == 0) &&
(hw_checksums[vp->card_idx] == -1)) {
printk(KERN_WARNING "%s supports hardware checksums, and we're not using them!\n", dev->name);
if (vp->rx_csumhits &&
(vp->drv_flags & HAS_HWCKSM) == 0 &&
(vp->card_idx >= MAX_UNITS || hw_checksums[vp->card_idx] == -1)) {
printk(KERN_WARNING "%s supports hardware checksums, and we're "
"not using them!\n", dev->name);
}
#endif