[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>

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 41e9ab40cd543f3f0b7b320384c993a121c7b777..f393a3867430c6aa2b8d6c83ead0af594ad5983d 100644 (file)
--- 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)