[PATCH] powerpc/pseries: fix error return value in cmm_mem_going_offline

[Rasmus Villemoes]

cmm_mem_going_offline is (only) called from cmm_memory_cb(), which
sends the return value through notifier_from_errno(). The latter
expects 0 or -errno (notifier_to_errno(notifier_from_errno(x)) is 0
for any x >= 0, so passing a positive value cannot make sense). Hence
negate ENOMEM.

Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
---
 arch/powerpc/platforms/pseries/cmm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/pseries/cmm.c
index fc44ad0475f8..66e7227469b8 100644
--- a/arch/powerpc/platforms/pseries/cmm.c
+++ b/arch/powerpc/platforms/pseries/cmm.c
@@ -574,7 +574,7 @@ static int cmm_mem_going_offline(void *arg)
 				cmm_dbg("Failed to allocate memory for list "
 						"management. Memory hotplug "
 						"failed.\n");
-				return ENOMEM;
+				return -ENOMEM;
 			}
 			memcpy(npa, pa_curr, PAGE_SIZE);
 			if (pa_curr == cmm_page_list)
-- 
2.1.4