Free useless ucode_patch entry when it's replaced.
Signed-off-by: Zhenzhong Duan <[email protected]>
---
arch/x86/kernel/cpu/microcode/intel.c | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/cpu/microcode/intel.c
b/arch/x86/kernel/cpu/microcode/intel.c
index 1c2cfa0..461e315 100644
--- a/arch/x86/kernel/cpu/microcode/intel.c
+++ b/arch/x86/kernel/cpu/microcode/intel.c
@@ -150,6 +150,12 @@ static bool microcode_matches(struct
microcode_header_intel *mc_header,
return false;
}
+static void memfree_patch(struct ucode_patch *p)
+{
+ kfree(p->data);
+ kfree(p);
+}
+
static struct ucode_patch *memdup_patch(void *data, unsigned int size)
{
struct ucode_patch *p;
@@ -190,8 +196,10 @@ static void save_microcode_patch(void *data, unsigned int
size)
p = memdup_patch(data, size);
if (!p)
pr_err("Error allocating buffer %p\n", data);
- else
+ else {
list_replace(&iter->plist, &p->plist);
+ memfree_patch(iter);
+ }
}
}
--
1.7.1
