There are a few leading spaces before tabs and remove it by running the
following commard:

	$ find . -name '*.c' | xargs sed -r -i 's/^[ ]+\t/\t/'

At the same time, fix two warning by running checkpatch.pl:
	WARNING: suspect code indent for conditional statements (16, 16)
	WARNING: braces {} are not necessary for single statement blocks

Signed-off-by: Hui Tang <tanghui20@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>