[openib-general] [PATCH 3 of 23] IB/ipath - fix for crash on module unload, if cfgports < portcnt

[Bryan O'Sullivan]

Allocate enough pointers for all possible ports, to avoid problems in
cleanup/unload.

Signed-off-by: Bryan O'Sullivan <bryan.osullivan at qlogic.com>

diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c
--- a/drivers/infiniband/hw/ipath/ipath_init_chip.c	Fri Aug 25 11:19:44 2006 -0700
+++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c	Fri Aug 25 11:19:44 2006 -0700
@@ -240,7 +240,11 @@ static int init_chip_first(struct ipath_
 			  "only supports %u\n", ipath_cfgports,
 			  dd->ipath_portcnt);
 	}
-	dd->ipath_pd = kzalloc(sizeof(*dd->ipath_pd) * dd->ipath_cfgports,
+	/*
+	 * Allocate full portcnt array, rather than just cfgports, because
+	 * cleanup iterates across all possible ports.
+	 */
+	dd->ipath_pd = kzalloc(sizeof(*dd->ipath_pd) * dd->ipath_portcnt,
 			       GFP_KERNEL);
 
 	if (!dd->ipath_pd) {