From: Jonghwan Choi <jhbird.choi@samsung.com>
Date: Mon, 16 Jan 2012 00:08:42 +0000 (+0900)
Subject: mfd: Fix possible s5m null pointer dereference
X-Git-Tag: v3.3-rc7~48^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4a55320117e2ca4ed9002a365d7e209d73abcdf1;p=platform%2Fkernel%2Flinux-stable.git

mfd: Fix possible s5m null pointer dereference

This patch checks for pdata to using it.

Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---

diff --git a/drivers/mfd/s5m-core.c b/drivers/mfd/s5m-core.c
index e075c11..caadabe 100644
--- a/drivers/mfd/s5m-core.c
+++ b/drivers/mfd/s5m-core.c
@@ -105,7 +105,7 @@ static int s5m87xx_i2c_probe(struct i2c_client *i2c,
 	s5m87xx->rtc = i2c_new_dummy(i2c->adapter, RTC_I2C_ADDR);
 	i2c_set_clientdata(s5m87xx->rtc, s5m87xx);
 
-	if (pdata->cfg_pmic_irq)
+	if (pdata && pdata->cfg_pmic_irq)
 		pdata->cfg_pmic_irq();
 
 	s5m_irq_init(s5m87xx);