[Patch] Array overrun in drivers/net/wireless/wavelan.c

[Eric Sesterhenn <snakebyte@gmx.de>]

hi,

this is another array overrun spotted by coverity (#id 507)
we should check the index against array size before using it.
Not sure why the driver doesnt use ARRAY_SIZE instead of its
own macro.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>

--- linux-2.6.17-git2/drivers/net/wireless/wavelan.c.orig	2006-06-21 16:35:19.000000000 +0200
+++ linux-2.6.17-git2/drivers/net/wireless/wavelan.c	2006-06-21 16:36:50.000000000 +0200
@@ -1695,8 +1695,8 @@ static int wv_frequency_list(unsigned lo
 		/* Look in the table if the frequency is allowed */
 		if (table[9 - (freq / 16)] & (1 << (freq % 16))) {
 			/* Compute approximate channel number */
-			while ((((channel_bands[c] >> 1) - 24) < freq) &&
-			       (c < NELS(channel_bands)))
+			while ((c < NELS(channel_bands)) &&
+				(((channel_bands[c] >> 1) - 24) < freq)) 
 				c++;
 			list[i].i = c;	/* Set the list index */
 


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