media: vimc: wrong pointer is used with PTR_ERR

Fix smatch warning:

drivers/media/test-drivers/vimc/vimc-core.c:214 vimc_create_links() warn: passing a valid pointer to 'PTR_ERR'

Signed-off-by: Hans Verkuil <[e-mail]>
Reviewed-by: Kieran Bingham <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/test-drivers/vimc/vimc-core.c

···
 			media_create_ancillary_link(ved_primary->ent, ved_ancillary->ent);
 
 		if (IS_ERR(ret_link)) {
-			ret = PTR_ERR(link);
+			ret = PTR_ERR(ret_link);
 			goto err_rm_links;
 		}
 	}