X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=kernel%2Futsname.c;h=816d7b24fa031af51b08d9108366d21626e3d38e;hb=dd07a8db7283f52f347aee468007556944b5b393;hp=160c8c5136bd6a6607ccfae5cfc2e285fe5791c6;hpb=2c4f365ad2361c93c097e958b2b0a7a112750228;p=karo-tx-linux.git

diff --git a/kernel/utsname.c b/kernel/utsname.c
index 160c8c5136bd..816d7b24fa03 100644
--- 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;