x86, microcode, AMD: Replace vmalloc+memset with vzalloc

We don't have to do memset() ourselves after vmalloc() when we have
vzalloc(), so change that in
arch/x86/kernel/microcode_amd.c::get_next_ucode().

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>

1 files changed, 10 insertions, 9 deletions

diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index e1af7c055c7d..383d4f8ec9e1 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -183,16 +183,17 @@ get_next_ucode(const u8 *buf, unsigned int size, unsigned int *mc_size)
                 return NULL;
         }
 
-        mc = vmalloc(UCODE_MAX_SIZE);
-        if (mc) {
-                memset(mc, 0, UCODE_MAX_SIZE);
-                if (get_ucode_data(mc, buf + UCODE_CONTAINER_SECTION_HDR,
-                                   total_size)) {
-                        vfree(mc);
-                        mc = NULL;
-                } else
-                        *mc_size = total_size + UCODE_CONTAINER_SECTION_HDR;
+        mc = vzalloc(UCODE_MAX_SIZE);
+        if (!mc)
+                return NULL;
+
+        if (get_ucode_data(mc, buf + UCODE_CONTAINER_SECTION_HDR, total_size)) {
+                vfree(mc);
+                mc = NULL;
+        } else {
+                *mc_size = total_size + UCODE_CONTAINER_SECTION_HDR;
         }
+
         return mc;
 }