efi, pstore: Cocci spatch "memdup.spatch"

Change a kmalloc() + memcpy() pair for a single kmemdup() call.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/firmware/efi/efi-pstore.c b/drivers/firmware/efi/efi-pstore.c
index 202d2c85ba2e..c692bb662178 100644
--- a/drivers/firmware/efi/efi-pstore.c
+++ b/drivers/firmware/efi/efi-pstore.c
@@ -79,10 +79,9 @@ static int efi_pstore_read_func(struct efivar_entry *entry, void *data)
                            &entry->var.DataSize, entry->var.Data);
         size = entry->var.DataSize;
 
-        *cb_data->buf = kmalloc(size, GFP_KERNEL);
+        *cb_data->buf = kmemdup(entry->var.Data, size, GFP_KERNEL);
         if (*cb_data->buf == NULL)
                 return -ENOMEM;
-        memcpy(*cb_data->buf, entry->var.Data, size);
         return size;
 }