[POWERPC] micro optimise pSeries_probe

We find the OF root the line before, we may as well use it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 6090d75..3e2f746 100644 (file)
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -433,8 +433,8 @@ static int __init pSeries_probe_hypertas(unsigned long node,
 static int __init pSeries_probe(void)
 {
        unsigned long root = of_get_flat_dt_root();
-       char *dtype = of_get_flat_dt_prop(of_get_flat_dt_root(),
-                                         "device_type", NULL);
+       char *dtype = of_get_flat_dt_prop(root, "device_type", NULL);
+
        if (dtype == NULL)
                return 0;
        if (strcmp(dtype, "chrp"))