wlan: Fix NULL dereference in pmmEnterWowlRequestHandler()

Static source code analysis identified an issue in
pmmEnterWowlRequestHandler() where a pointer was being checked for
NULL after it had already been dereferenced.  Modify the code to check
for NULL before the dereference.

Change-Id: I1b1100c716c0f8d68d81e9d684dab245d22b3c92
CRs-fixed: 470188
1 file changed
tree: 78e0dcccf4bb595bb0af3e215889aa106fdcdf38
  1. CORE/
  2. firmware_bin/
  3. riva/
  4. Android.mk
  5. Kbuild
  6. Kconfig