udev/path_id: correct segmentation fault due to missing NULL check
authorHendrik Brueckner <brueckner@linux.vnet.ibm.com>
Fri, 19 Feb 2016 14:21:18 +0000 (15:21 +0100)
committerHendrik Brueckner <brueckner@linux.vnet.ibm.com>
Fri, 19 Feb 2016 14:21:18 +0000 (15:21 +0100)
commit5181ab917d6407cb57043e98955f0de1614366ea
tree5852ce7d7d900700c3ed11da5a346b12f4129dd1
parenta972e1e0b3af9dbe490c6433322c635d9e5ad875
udev/path_id: correct segmentation fault due to missing NULL check

Running "udevadm test-builtin path_id /sys/devices/platform/" results
in a segmentation fault.

The problem is that udev_device_get_subsystem(dev) might return NULL
in a streq() call.  Solve this problem by using streq_ptr() instead.
src/udev/udev-builtin-path_id.c