[PATCH 1/2] ehea: Fix DLPAR memory handling

[Hannes Hering]

The ehea busmap must be allocated only once in the first of many calls of the
ehea_create_busmap_callback.

Signed-off-by: Hannes Hering <hering2 at de.ibm.com>
---

diff -Nurp -X dontdiff linux-2.6.27-rc5/drivers/net/ehea/ehea_qmr.c patched_kernel/drivers/net/ehea/ehea_qmr.c
--- linux-2.6.27-rc5/drivers/net/ehea/ehea_qmr.c	2008-08-29 00:52:02.000000000 +0200
+++ patched_kernel/drivers/net/ehea/ehea_qmr.c	2008-09-05 15:31:30.000000000 +0200
@@ -595,7 +595,8 @@ static int ehea_create_busmap_callback(u
 	end_section = start_section + ((nr_pages * PAGE_SIZE) / EHEA_SECTSIZE);
 	mr_len = *(unsigned long *)arg;
 
-	ehea_bmap = kzalloc(sizeof(struct ehea_bmap), GFP_KERNEL);
+	if (!ehea_bmap)
+		ehea_bmap = kzalloc(sizeof(struct ehea_bmap), GFP_KERNEL);
 	if (!ehea_bmap)
 		return -ENOMEM;