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authorTakashi Iwai <tiwai@suse.de>2013-04-25 13:02:35 +0200
committerTakashi Iwai <tiwai@suse.de>2013-04-25 13:02:35 +0200
commit2fc565e4eaf8fc633bfc741b90e1f28dba732ee1 (patch)
tree98c994692f84aee07cf1c7b4cda245ae5235a94d /kernel/smpboot.c
parent7fc7d047216aa4923d401c637be2ebc6e3d5bd9b (diff)
parent5cc50fc858a5ab37dc2744d72d7ffed96f23afd8 (diff)
Merge tag 'asoc-v3.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: More updates for v3.10 A few more fixes, nothing too major though the DMA changes fix modular builds.
Diffstat (limited to 'kernel/smpboot.c')
-rw-r--r--kernel/smpboot.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/kernel/smpboot.c b/kernel/smpboot.c
index 8eaed9aa9cf..02fc5c93367 100644
--- a/kernel/smpboot.c
+++ b/kernel/smpboot.c
@@ -185,8 +185,18 @@ __smpboot_create_thread(struct smp_hotplug_thread *ht, unsigned int cpu)
}
get_task_struct(tsk);
*per_cpu_ptr(ht->store, cpu) = tsk;
- if (ht->create)
- ht->create(cpu);
+ if (ht->create) {
+ /*
+ * Make sure that the task has actually scheduled out
+ * into park position, before calling the create
+ * callback. At least the migration thread callback
+ * requires that the task is off the runqueue.
+ */
+ if (!wait_task_inactive(tsk, TASK_PARKED))
+ WARN_ON(1);
+ else
+ ht->create(cpu);
+ }
return 0;
}