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-rw-r--r--kernel/utsname.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/kernel/utsname.c b/kernel/utsname.c
index 815237a55af8..8a82b4b8ea52 100644
--- a/kernel/utsname.c
+++ b/kernel/utsname.c
@@ -15,6 +15,16 @@
15#include <linux/err.h> 15#include <linux/err.h>
16#include <linux/slab.h> 16#include <linux/slab.h>
17 17
18static struct uts_namespace *create_uts_ns(void)
19{
20 struct uts_namespace *uts_ns;
21
22 uts_ns = kmalloc(sizeof(struct uts_namespace), GFP_KERNEL);
23 if (uts_ns)
24 kref_init(&uts_ns->kref);
25 return uts_ns;
26}
27
18/* 28/*
19 * Clone a new ns copying an original utsname, setting refcount to 1 29 * Clone a new ns copying an original utsname, setting refcount to 1
20 * @old_ns: namespace to clone 30 * @old_ns: namespace to clone
@@ -24,14 +34,13 @@ static struct uts_namespace *clone_uts_ns(struct uts_namespace *old_ns)
24{ 34{
25 struct uts_namespace *ns; 35 struct uts_namespace *ns;
26 36
27 ns = kmalloc(sizeof(struct uts_namespace), GFP_KERNEL); 37 ns = create_uts_ns();
28 if (!ns) 38 if (!ns)
29 return ERR_PTR(-ENOMEM); 39 return ERR_PTR(-ENOMEM);
30 40
31 down_read(&uts_sem); 41 down_read(&uts_sem);
32 memcpy(&ns->name, &old_ns->name, sizeof(ns->name)); 42 memcpy(&ns->name, &old_ns->name, sizeof(ns->name));
33 up_read(&uts_sem); 43 up_read(&uts_sem);
34 kref_init(&ns->kref);
35 return ns; 44 return ns;
36} 45}
37 46