Re: [RFC: 2.6 patch] drivers/net/wireless/airo.c: correct a wrong

From: Jeff Garzik
Date: Tue Mar 22 2005 - 17:24:39 EST


Adrian Bunk wrote:
if
Reply-To:

The Coverity checker correctly noted that this condition can't ever be fulfilled.

Can someone understanding this code check whether my guess what this should have been was right?

Or should the if get completely dropped?

Signed-off-by: Adrian Bunk <bunk@xxxxxxxxx>

--- linux-2.6.12-rc1-mm1-full/drivers/net/wireless/airo.c.old 2005-03-22 21:41:37.000000000 +0100
+++ linux-2.6.12-rc1-mm1-full/drivers/net/wireless/airo.c 2005-03-22 21:42:01.000000000 +0100
@@ -3440,9 +3440,6 @@
/* Make sure we got something */
if (rxd.rdy && rxd.valid == 0) {
len = rxd.len + 12;
- if (len < 12 && len > 2048)
- goto badrx;

Coverity is silly.

len is signed, and so can obviously be less than zero in edge cases. I don't see where the "> 2048" test is invalid, either.

Jeff



-
To unsubscribe from this list: send the line "unsubscribe linux-net" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html