linux-kernel - [PATCH 2/2] pinctrl: pinctrl-mxs: set platform driver data to NULL at errpath and at unregister

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Date:	Sat,  9 Jun 2012 17:32:31 +0530
From:	Devendra Naga <devendra.aaru@...il.com>
To:	Linus Walleij <linus.walleij@...aro.org>,
	linux-kernel@...r.kernel.org
Cc:	Devendra Naga <devendra.aaru@...il.com>
Subject: [PATCH 2/2] pinctrl: pinctrl-mxs: set platform driver data to NULL at errpath and at unregister

clear the platform data pointer when mxs_pinctrl_probe_dt fails,
and also before the unregistering with pinctrl subsystem.

Signed-off-by: Devendra Naga <devendra.aaru@...il.com>
---
 drivers/pinctrl/pinctrl-mxs.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-mxs.c b/drivers/pinctrl/pinctrl-mxs.c
index 9d46303..afb50ee 100644
--- a/drivers/pinctrl/pinctrl-mxs.c
+++ b/drivers/pinctrl/pinctrl-mxs.c
@@ -516,6 +516,7 @@ int __devinit mxs_pinctrl_probe(struct platform_device *pdev,
 	return 0;
 
 err:
+	platform_set_drvdata(pdev, NULL);
 	iounmap(d->base);
 	return ret;
 }
@@ -525,6 +526,7 @@ int __devexit mxs_pinctrl_remove(struct platform_device *pdev)
 {
 	struct mxs_pinctrl_data *d = platform_get_drvdata(pdev);
 
+	platform_set_drvdata(pdev, NULL);
 	pinctrl_unregister(d->pctl);
 	iounmap(d->base);
 
-- 
1.7.9.5

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