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migration: Fix use of file after release

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qemu_fclose frees the passed file structure, but do_migrate_set_speed
may access it later on. Fix it by setting file NULL in
migrate_fd_cleanup and checking for this.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jan Kiszka
2009-12-03 10:48:51 -06:00
committed by Anthony Liguori
parent be73cfe2be
commit 5d39c799c3
1 changed files with 3 additions and 3 deletions
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migration.c
+3 -3
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@@ -118,12 +118,11 @@ void do_migrate_set_speed(Monitor *mon, const QDict *qdict, QObject **ret_data)
}
max_throttle = (uint32_t)d;
s = migrate_to_fms(current_migration);
if (s) {
s = migrate_to_fms(current_migration);
if (s && s->file) {
qemu_file_set_rate_limit(s->file, max_throttle);
}
}
/* amount of nanoseconds we are willing to wait for migration to be down.
@@ -209,6 +208,7 @@ void migrate_fd_cleanup(FdMigrationState *s)
if (s->file) {
dprintf("closing file\n");
qemu_fclose(s->file);
s->file = NULL;
}
if (s->fd != -1)