wlan: Avoid overrun when processing GETROAMSCANCHANNELS

Static source code analysis indicated that hdd_ioctl(), when
processing the "GETROAMSCANCHANNELS" command, may use index value(s)
128..255 on array 'extra' of size 128.  Due to the data involved this
is probably a "false positive" but it is easy to suppress the warning
by changing the declaration of 'len' from u8 to int, so change the
declaration.

Change-Id: I9529a6d81f779aeebd928a5c8db91de8cc80ae48
CRs-fixed: 470188
1 file changed
tree: 2cc2450ed8dbe53a3cf7333c3651c1e88f3dd28b
  1. CORE/
  2. firmware_bin/
  3. riva/
  4. Android.mk
  5. Kbuild
  6. Kconfig