X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=arch%2Fsparc%2Fkernel%2Fprom.c;h=eee5efcfe50eea300a42d43e887bf4a7b5a54c6a;hb=ed8c3174dd227031d1f3b9fa4fbb512f8f623434;hp=cd4fb79aa3a8e185f12d8bfcd8ec90960e2a40ff;hpb=973ed7c49a5c2271a10ce54ac06bba5617fca3a8;p=linux-2.6-omap-h63xx.git

diff --git a/arch/sparc/kernel/prom.c b/arch/sparc/kernel/prom.c
index cd4fb79aa3a..eee5efcfe50 100644
--- a/arch/sparc/kernel/prom.c
+++ b/arch/sparc/kernel/prom.c
@@ -54,6 +54,9 @@ int of_getintprop_default(struct device_node *np, const char *name, int def)
 }
 EXPORT_SYMBOL(of_getintprop_default);
 
+DEFINE_MUTEX(of_set_property_mutex);
+EXPORT_SYMBOL(of_set_property_mutex);
+
 int of_set_property(struct device_node *dp, const char *name, void *val, int len)
 {
 	struct property **prevp;
@@ -77,7 +80,10 @@ int of_set_property(struct device_node *dp, const char *name, void *val, int len
 			void *old_val = prop->value;
 			int ret;
 
+			mutex_lock(&of_set_property_mutex);
 			ret = prom_setprop(dp->node, (char *) name, val, len);
+			mutex_unlock(&of_set_property_mutex);
+
 			err = -EINVAL;
 			if (ret >= 0) {
 				prop->value = new_val;
@@ -436,7 +442,6 @@ static void __init of_console_init(void)
 
 	switch (prom_vers) {
 	case PROM_V0:
-	case PROM_SUN4:
 		skip = 0;
 		switch (*romvec->pv_stdout) {
 		case PROMDEV_SCREEN: