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Diffstat (limited to 'arch/x86/mm/pat.c')
-rw-r--r--arch/x86/mm/pat.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index bbe5502ee1cb..acc15b23b743 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -336,6 +336,7 @@ int free_memtype(u64 start, u64 end)
{
int err = -EINVAL;
int is_range_ram;
+ struct memtype *entry;
if (!pat_enabled)
return 0;
@@ -355,17 +356,20 @@ int free_memtype(u64 start, u64 end)
}
spin_lock(&memtype_lock);
- err = rbt_memtype_erase(start, end);
+ entry = rbt_memtype_erase(start, end);
spin_unlock(&memtype_lock);
- if (err) {
+ if (!entry) {
printk(KERN_INFO "%s:%d freeing invalid memtype %Lx-%Lx\n",
current->comm, current->pid, start, end);
+ return -EINVAL;
}
+ kfree(entry);
+
dprintk("free_memtype request 0x%Lx-0x%Lx\n", start, end);
- return err;
+ return 0;
}