read_buff 20 drivers/gpu/drm/udl/udl_connector.c u8 *read_buff; read_buff 23 drivers/gpu/drm/udl/udl_connector.c read_buff = kmalloc(2, GFP_KERNEL); read_buff 24 drivers/gpu/drm/udl/udl_connector.c if (!read_buff) read_buff 32 drivers/gpu/drm/udl/udl_connector.c 0xA1, read_buff, 2, HZ); read_buff 35 drivers/gpu/drm/udl/udl_connector.c kfree(read_buff); read_buff 38 drivers/gpu/drm/udl/udl_connector.c buf[i] = read_buff[1]; read_buff 41 drivers/gpu/drm/udl/udl_connector.c kfree(read_buff);