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wct4xxp: Bug in timing cable with different span density cards

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The logic loops through the static cards[] array to determine timing,
    but the subloop was based off the current card's numspans member.
    This could cause a null dereference in the case where two cards of
    different span densities were connected via timing cables.

Reported-by: Doug Bailey <dbailey@digium.com>
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@10140 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This commit is contained in:
Russ Meyerriecks
2011-08-15 21:57:49 +00:00
parent eda8ceea1c
commit 3b20fe39af
1 changed files with 1 additions and 1 deletions
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2
drivers/dahdi/wct4xxp/base.c
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@@ -2384,7 +2384,7 @@ static int __t4_findsync(struct t4 *wc)
while (p < 8) {
nonzero = 0;
for (x=0;cards[x];x++) {
for (i = 0; i < wc->numspans; i++) {
for (i = 0; i < cards[x]->numspans; i++) {
if (cards[x]->tspans[i]->syncpos) {
nonzero = 1;
if ((cards[x]->tspans[i]->syncpos == p) &&