From: Vitaly Wool <vitalywool@gmail.com>
Date: Thu, 7 Dec 2006 19:08:02 +0000 (+0100)
Subject: mmc: fix "prev->state: 2 != TASK_RUNNING??" problem on SD/MMC  card removal
X-Git-Tag: v2.6.20-rc1~15^2~25^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7b30d281b9c115890c75d11eaf06881261c256da;p=platform%2Fkernel%2Flinux-exynos.git

mmc: fix "prev->state: 2 != TASK_RUNNING??" problem on SD/MMC  card removal

Currently on SD/MMC card removal the system exhibits the following message (the platform is ARM Versatile):

    prev->state: 2 != TASK_RUNNING??
    mmcqd/762[CPU#0]: BUG in __schedule at linux-2.6/kernel/sched.c:3826

(akpm: someone tried to fix this, but it's still wrong)

Signed-off-by: Vitaly Wool <vitalywool@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
---

diff --git a/drivers/mmc/mmc_queue.c b/drivers/mmc/mmc_queue.c
index a17423a..3e35a43 100644
--- a/drivers/mmc/mmc_queue.c
+++ b/drivers/mmc/mmc_queue.c
@@ -78,8 +78,10 @@ static int mmc_queue_thread(void *d)
 		spin_unlock_irq(q->queue_lock);
 
 		if (!req) {
-			if (kthread_should_stop())
+			if (kthread_should_stop()) {
+				set_current_state(TASK_RUNNING);
 				break;
+			}
 			up(&mq->thread_sem);
 			schedule();
 			down(&mq->thread_sem);