[PATCH] powerpc: Fix call to ibm,client-architecture-support

The code in prom_init.c calling the firmware
ibm,client-architecture-support method on pSeries has a bug where it
fails to properly pass the instance handle of the firmware object when
trying to call a method. Result ranges from the call doing nothing to
the firmware crashing. (Found by Segher, thanks !)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 41e9ab40cd54..f393a3867430 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -822,6 +822,7 @@ static void __init prom_send_capabilities(void)
                 /* try calling the ibm,client-architecture-support method */
                 if (call_prom_ret("call-method", 3, 2, &ret,
                                   ADDR("ibm,client-architecture-support"),
+                                  root,
                                   ADDR(ibm_architecture_vec)) == 0) {
                         /* the call exists... */
                         if (ret)