Unverified Commit 7c42e37b authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!12142 nfc: pn533: Add poll mod list filling check 

Merge Pull Request from: @ci-robot 
 
PR sync from: Lin Ruifeng <linruifeng4@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/5CLMCZKTURRZVSKH6HH23LQC2G455UTV/ 
 
https://gitee.com/openeuler/kernel/issues/IAR4F8 
 
Link:https://gitee.com/openeuler/kernel/pulls/12142

 

Reviewed-by: default avatarWeilong Chen <chenweilong@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents 43699e52 75fce7db

drivers/nfc/pn533/pn533.c

+5 −0
Original line number Diff line number Diff line
@@ -1751,6 +1751,11 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev, 
	}



	pn533_poll_create_mod_list(dev, im_protocols, tm_protocols);

	if (!dev->poll_mod_count) {

		nfc_err(dev->dev,

			"Poll mod list is empty\n");

		return -EINVAL;

	}



	/* Do not always start polling from the same modulation */

	get_random_bytes(&rand_mod, sizeof(rand_mod));