Commit 7f13303c authored Jun 01, 2017 by Zhen Kong Committed by Gerrit - the friendly Code Review server Jun 07, 2017

qseecom: fix listener unregistration issue

When listener unregister thread wakes up due to some system signals,
but not because ioctl_cnt <=1, it should return directly, instead of
continuing to remove listener list entry, which will lead kernel panic
when another listener receive thread accesses this freed entry.

Change-Id: I6ff97c56867d008232d7c50b22b372b0856c8dff
Signed-off-by: Zhen Kong <zkong@codeaurora.org>

parent 9ca28587

drivers/misc/qseecom.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1246,7 +1246,7 @@ static int qseecom_unregister_listener(struct qseecom_dev_handle *data)
		atomic_read(&data->ioctl_count) <= 1)) {
		pr_err("Interrupted from abort\n");
		ret = -ERESTARTSYS;
		break;
		return ret;
		}
		}