From 82a0787906dbf06219202345e2d39be1cb4e9350 Mon Sep 17 00:00:00 2001
From: Ben Chan <benchan@chromium.org>
Date: Fri, 17 May 2013 11:05:44 -0700
Subject: device: check for NULL driver in add_port_driver

This patch fixes a crash in MMDevice::add_port_driver() due to
g_str_equal() dereferencing a NULL driver returned by
mm_device_utils_get_port_driver().

Bug reported on https://code.google.com/p/chromium/issues/detail?id=241823
---
 src/mm-device.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/mm-device.c')

diff --git a/src/mm-device.c b/src/mm-device.c
index bfc4b36b..54f64562 100644
--- a/src/mm-device.c
+++ b/src/mm-device.c
@@ -255,6 +255,8 @@ add_port_driver (MMDevice *self,
     guint i;
 
     driver = mm_device_utils_get_port_driver (udev_port);
+    if (!driver)
+        return;
 
     n_items = (self->priv->drivers ? g_strv_length (self->priv->drivers) : 0);
     if (n_items > 0) {
-- 
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