From: Clement Perrochaud <clement.perrochaud@nxp.com>
Date: Tue, 8 Apr 2014 11:13:49 +0000 (+0000)
Subject: NFC: pn544_i2c: Fix null pointer exception when not using platform data
X-Git-Tag: v4.14-rc1~7158^2~11^2~7^2~65^2~23
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=12b25dbf119337ce51dc93e5ecd7cbe891877328;p=platform%2Fkernel%2Flinux-rpi.git

NFC: pn544_i2c: Fix null pointer exception when not using platform data

Fixes a null pointer exception occurring when the IRQ request in
pn544_hci_i2c_probe fails and no platform data is available.

Signed-off-by: Clément Perrochaud <clement.perrochaud@nxp.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---

diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c
index 5239e3b..440291a 100644
--- a/drivers/nfc/pn544/i2c.c
+++ b/drivers/nfc/pn544/i2c.c
@@ -1029,8 +1029,12 @@ err_hci:
 	free_irq(client->irq, phy);
 
 err_rti:
-	if (pdata->free_resources != NULL)
+	if (!pdata) {
+		gpio_free(phy->gpio_en);
+		gpio_free(phy->gpio_fw);
+	} else if (pdata->free_resources) {
 		pdata->free_resources();
+	}
 
 	return r;
 }