linux-kernel - [PATCH 2/2] dmaengine: intel_mid_dma: move pm_runtime

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Message-Id: <1328006940-9101-3-git-send-email-adrian.hunter@intel.com>
Date:	Tue, 31 Jan 2012 12:49:00 +0200
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	Vinod Koul <vinod.koul@...el.com>
Cc:	Dan Williams <dan.j.williams@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Adrian Hunter <adrian.hunter@...el.com>
Subject: [PATCH 2/2] dmaengine: intel_mid_dma: move pm_runtime_put

Move pm_runtime_put() to the end of intel_mid_dma_free_chan_resources()
because there is no sense in allowing runtime suspend while the driver
is still accessing the device.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
 drivers/dma/intel_mid_dma.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c
index 512e2ab..923476d 100644
--- a/drivers/dma/intel_mid_dma.c
+++ b/drivers/dma/intel_mid_dma.c
@@ -832,7 +832,6 @@ static void intel_mid_dma_free_chan_resources(struct dma_chan *chan)
 		/*trying to free ch in use!!!!!*/
 		pr_err("ERR_MDMA: trying to free ch in use\n");
 	}
-	pm_runtime_put(&mid->pdev->dev);
 	spin_lock_bh(&midc->lock);
 	midc->descs_allocated = 0;
 	list_for_each_entry_safe(desc, _desc, &midc->active_list, desc_node) {
@@ -853,6 +852,7 @@ static void intel_mid_dma_free_chan_resources(struct dma_chan *chan)
 	/* Disable CH interrupts */
 	iowrite32(MASK_INTR_REG(midc->ch_id), mid->dma_base + MASK_BLOCK);
 	iowrite32(MASK_INTR_REG(midc->ch_id), mid->dma_base + MASK_ERR);
+	pm_runtime_put(&mid->pdev->dev);
 }
 
 /**
-- 
1.7.6.4

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