linux-kernel - [PATCH v4 08/21] serial: omap: set dev->drvdata before enabling pm

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Message-Id: <1346935540-1792-9-git-send-email-balbi@ti.com>
Date:	Thu,  6 Sep 2012 15:45:27 +0300
From:	Felipe Balbi <balbi@...com>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	alan@...ux.intel.com, Tony Lindgren <tony@...mide.com>,
	Kevin Hilman <khilman@...com>,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Linux ARM Kernel Mailing List 
	<linux-arm-kernel@...ts.infradead.org>,
	linux-serial@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Shubhrajyoti Datta <shubhrajyoti@...com>,
	Sourav Poddar <sourav.poddar@...com>,
	Felipe Balbi <balbi@...com>
Subject: [PATCH v4 08/21] serial: omap: set dev->drvdata before enabling pm_runtime

by the time we call our first pm_runtme_get_sync()
after enable pm_runtime, our resume method might
be called. To avoid problems, we must make sure
that our dev->drvdata is set correctly before
our resume method gets called.

Tested-by: Shubhrajyoti D <shubhrajyoti@...com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@...com>
Signed-off-by: Felipe Balbi <balbi@...com>
---
 drivers/tty/serial/omap-serial.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index b2043df..8a696a4 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1333,6 +1333,7 @@ static int serial_omap_probe(struct platform_device *pdev)
 	serial_omap_uart_wq = create_singlethread_workqueue(up->name);
 	INIT_WORK(&up->qos_work, serial_omap_uart_qos_work);
 
+	platform_set_drvdata(pdev, up);
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_set_autosuspend_delay(&pdev->dev,
 			omap_up_info->autosuspend_timeout);
@@ -1352,7 +1353,6 @@ static int serial_omap_probe(struct platform_device *pdev)
 
 	pm_runtime_mark_last_busy(up->dev);
 	pm_runtime_put_autosuspend(up->dev);
-	platform_set_drvdata(pdev, up);
 	return 0;
 
 err_add_port:
-- 
1.7.12.rc3

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