[PM-SR] [PATCH 6/7] omap3: sr: device: check for dev_attr

[Nishanth Menon <nm@ti.com>]

in the unlikely case that hwmod database is messed up, dont crash
report error and attempt to recover.

Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Thara Gopinath <thara@ti.com>

Signed-off-by: Nishanth Menon <nm@ti.com>
---
 arch/arm/mach-omap2/sr_device.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-omap2/sr_device.c b/arch/arm/mach-omap2/sr_device.c
index 177299a..81d2532 100644
--- a/arch/arm/mach-omap2/sr_device.c
+++ b/arch/arm/mach-omap2/sr_device.c
@@ -131,6 +131,12 @@ static int sr_dev_init(struct omap_hwmod *oh, void *user)
 	}
 
 	sr_dev_data = (struct omap_sr_dev_data *)oh->dev_attr;
+	if (unlikely(!sr_dev_data)) {
+		pr_err("%s: Bad oh->dev_attr!\n", __func__);
+		kfree(sr_data);
+		return -EINVAL;
+	}
+
 	/*
 	 * OMAP3430 ES3.1 chips by default come with Efuse burnt
 	 * with parameters required for full functionality of
-- 
1.6.3.3