ASoC: msm: Fix issues to improve code quality

Various comparisons, initializations and boundary
cases were found. With some analysis, the issues
are fixed.

Change-Id: I5816353eabbe6f12f9992ed5ba8e71dd28ae44a5
Signed-off-by: Simmi Pateriya <simmip@codeaurora.org>
4 files changed