wlan: Fix potential NULL dereference in csrRoamRssiRspProcessor()

Static source code analysis identified an issue in
csrRoamRssiRspProcessor() where a pointer was being tested for NULL
after it had already been dereferenced.  Update the code to test the
pointer for NULL before dereferencing it.

Change-Id: Ia8406c1eb24ede9d8744625c7bed596197fcc548
CRs-fixed: 470188
1 file changed
tree: d6e9e4c6bf3c6ab6ef8f8f61f411afdbdb6d5cb8
  1. CORE/
  2. firmware_bin/
  3. riva/
  4. Android.mk
  5. Kbuild
  6. Kconfig