On 02/04/2010 10:28 AM, Andy Isaacson wrote:
> On my Dell Latitude e4300 commit 859ddf0974 ("idr: fix a critical
> misallocation bug") causes Xorg to segfault with the following
> backtrace:
Does the following patch make any difference?
diff --git a/lib/idr.c b/lib/idr.c
index ba7d37c..a96c604 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -140,7 +140,8 @@ static int sub_alloc(struct idr *idp, int *starting_id,
struct idr_layer **pa)
id = *starting_id;
restart:
p = idp->top;
- l = p->layer;
+ l = idp->layers;
+ pa[l--] = NULL;
while (1) {
/*
* We run around this while until we reach the leaf node...
--
tejun
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