kernel.py: replace os.popen with subprocess.Popen
authorRobert Yang <liezhi.yang@windriver.com>
Fri, 1 Jun 2012 08:03:58 +0000 (16:03 +0800)
committerRichard Purdie <richard.purdie@linuxfoundation.org>
Tue, 5 Jun 2012 21:49:19 +0000 (22:49 +0100)
commit661d090efed0414f02aa2c7bd4d414873353290d
treeb6435c04906485a8dbf284faeceb6657c148e8ff
parent5b409948412bf985a2c27a70aa58dd55d75dfddf
kernel.py: replace os.popen with subprocess.Popen

Replace os.popen with subprocess.Popen since the older function would
fail (more or less) silently if the executed program cannot be found

More info:
http://docs.python.org/library/subprocess.html#subprocess-replacements

[YOCTO #2454]

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
scripts/lib/bsp/kernel.py