Unverified Commit 4bfa88f2 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!12043 s390/sclp: Prevent release of buffer in I/O 

Merge Pull Request from: @ci-robot 
 
PR sync from: Li Nan <linan122@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/5R4SCXG7H62SWML7DLJK5AHLNYZTMG5O/ 
 
https://gitee.com/src-openeuler/kernel/issues/IAOXYK 
 
Link:https://gitee.com/openeuler/kernel/pulls/12043

 

Reviewed-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents 1a572bce 1d42d57d

drivers/s390/char/sclp_sd.c

+8 −2
Original line number Diff line number Diff line
@@ -319,8 +319,14 @@ static int sclp_sd_store_data(struct sclp_sd_data *result, u8 di) 
			  &esize);

	if (rc) {

		/* Cancel running request if interrupted */

		if (rc == -ERESTARTSYS)

			sclp_sd_sync(page, SD_EQ_HALT, di, 0, 0, NULL, NULL);

		if (rc == -ERESTARTSYS) {

			if (sclp_sd_sync(page, SD_EQ_HALT, di, 0, 0, NULL, NULL)) {

				pr_warn("Could not stop Store Data request - leaking at least %zu bytes\n",

					(size_t)dsize * PAGE_SIZE);

				data = NULL;

				asce = 0;

			}

		}

		vfree(data);

		goto out;

	}