Changeset 698ce34c in mainline

Timestamp:

2020-05-05T15:59:13Z (4 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

622e7c9

Parents:

b42fa76

Message:

Async_hangup being called with async exchanges should be assertion failure

If this happens, there is a race between async_hangup() (which frees
the session) and using the session.

File:

• uspace/lib/c/generic/async/client.c (modified) (1 diff)

uspace/lib/c/generic/async/client.c

@@ -1069 +1069 @@
 
         fibril_mutex_lock(&async_sess_mutex);
-
-        if (sess->exchanges > 0) {
-                fibril_mutex_unlock(&async_sess_mutex);
-                return EBUSY;
-        }
+        assert(sess->exchanges == 0);
 
         errno_t rc = async_hangup_internal(sess->phone);