drm/nouveau/disp: switch to use kmemdup() helper

Use kmemdup() helper instead of open-coding to
simplify the code.

Signed-off-by: Chen Haonan <chen.haonan2@zte.com.cn>
Reviewed-by: Yang Guang <yang.guang5@zte.com.cn>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/202401091424115185126@zte.com.cn

diff --git a/drivers/gpu/drm/nouveau/nvif/outp.c b/drivers/gpu/drm/nouveau/nvif/outp.c
index 5d3190c05250a959019ee43e919a666e4082a753..6daeb7f0b09b63fcd8d6f0149c18b4dfd624672f 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvif/outp.c
+++ b/drivers/gpu/drm/nouveau/nvif/outp.c
@@ -452,13 +452,12 @@ nvif_outp_edid_get(struct nvif_outp *outp, u8 **pedid)
        if (ret)
                goto done;
 
-       *pedid = kmalloc(args->size, GFP_KERNEL);
+       *pedid = kmemdup(args->data, args->size, GFP_KERNEL);
        if (!*pedid) {
                ret = -ENOMEM;
                goto done;
        }
 
-       memcpy(*pedid, args->data, args->size);
        ret = args->size;
 done:
        kfree(args);