From: Fancy Fang <B47543@freescale.com>
Date: Wed, 8 Jan 2014 02:43:17 +0000 (+0800)
Subject: ENGR00294115 PXP: correct the pxp_dispatch thread exit logic
X-Git-Tag: KARO-TX6-2014-08-21~1^2~79
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=750553d25bd827b4afb562253fe566212ab994f7;p=karo-tx-linux.git

ENGR00294115 PXP: correct the pxp_dispatch thread exit logic

We should add thread stop checking before handle pxp task,
since the wait condition includes this check.

Signed-off-by: Fancy Fang <B47543@freescale.com>
---

diff --git a/drivers/dma/pxp/pxp_dma_v2.c b/drivers/dma/pxp/pxp_dma_v2.c
index f4a70bdf2c36..63d5d4e91b51 100644
--- a/drivers/dma/pxp/pxp_dma_v2.c
+++ b/drivers/dma/pxp/pxp_dma_v2.c
@@ -1673,6 +1673,9 @@ static int pxp_dispatch_thread(void *argv)
 		if (signal_pending(current))
 			continue;
 
+		if (kthread_should_stop())
+			break;
+
 		spin_lock_irqsave(&pxp->lock, flags);
 		pxp->pxp_ongoing = 1;
 		spin_unlock_irqrestore(&pxp->lock, flags);