[ARM] 4979/1: [AT91] Olimex SAM9-L9260 board support

[linux-2.6-omap-h63xx.git] / kernel / utsname.c

diff --git a/kernel/utsname.c b/kernel/utsname.c
index 160c8c5136bd6a6607ccfae5cfc2e285fe5791c6..816d7b24fa031af51b08d9108366d21626e3d38e 100644 (file)
--- a/kernel/utsname.c
+++ b/kernel/utsname.c
@@ -13,6 +13,7 @@
 #include <linux/uts.h>
 #include <linux/utsname.h>
 #include <linux/version.h>
+#include <linux/err.h>
 
 /*
  * Clone a new ns copying an original utsname, setting refcount to 1
@@ -24,10 +25,13 @@ static struct uts_namespace *clone_uts_ns(struct uts_namespace *old_ns)
        struct uts_namespace *ns;
 
        ns = kmalloc(sizeof(struct uts_namespace), GFP_KERNEL);
-       if (ns) {
-               memcpy(&ns->name, &old_ns->name, sizeof(ns->name));
-               kref_init(&ns->kref);
-       }
+       if (!ns)
+               return ERR_PTR(-ENOMEM);
+
+       down_read(&uts_sem);
+       memcpy(&ns->name, &old_ns->name, sizeof(ns->name));
+       up_read(&uts_sem);
+       kref_init(&ns->kref);
        return ns;
 }
 
@@ -37,7 +41,7 @@ static struct uts_namespace *clone_uts_ns(struct uts_namespace *old_ns)
  * utsname of this process won't be seen by parent, and vice
  * versa.
  */
-struct uts_namespace *copy_utsname(int flags, struct uts_namespace *old_ns)
+struct uts_namespace *copy_utsname(unsigned long flags, struct uts_namespace *old_ns)
 {
        struct uts_namespace *new_ns;