wlan: Fix buffer overwrite problem in GETDWELLTIME

If (len + 1) is greater than priv_data.total_len then copy_to_user
results in writing more data than the buffer can hold.
Fix this by writing mininum of (len + 1) and priv_data.total_len

Change-Id: I26a4a7e9af346c18d94f91fe41ea016e82007faf
CRs-Fixed: 865510
1 file changed
tree: 05bb21d8bb0f0318a9628be3ff270592062dbb4f
  1. CORE/
  2. firmware_bin/
  3. riva/
  4. Android.mk
  5. Kbuild
  6. Kconfig
  7. Makefile