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>

diff --git a/drivers/firmware/efi/efi-pstore.c b/drivers/firmware/efi/efi-pstore.c
index 202d2c85ba2e79e2db866e78a03dffa240967f25..c692bb6621783b81a5d1cff34a77b2c9af301a9d 100644 (file)
--- 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;
 }