suspend script fails with 2.6.31, related to stdout?

[Tomas M.]

a pm-suspend hook fails with 2.6.31 (which does not under 2.6.30). the 
error as follows:
---

/etc/pm/sleep.d/11netcfg resume suspend: /bin/stty: standard input: 
Inappropriate ioctl for device
/bin/stty: standard input: Inappropriate ioctl for device
:: Scanning for networks    [BUSY] wlan0     Interface doesn't support 
scanning : Network is down

wlan0     Interface doesn't support scanning : Network is down

wlan0     Interface doesn't support scanning : Network is down

wlan0     Interface doesn't support scanning : Network is down

wlan0     Interface doesn't support scanning : Network is down

wlan0     Interface doesn't support scanning : Network is down

/etc/rc.d/functions: line 99: printf: - : invalid option
printf: usage: printf [-v var] format [arguments]
  [FAIL]
---
ive been tracking down the script, and it all comes down to iwlist 
(which is used to scan for networks) which prints outputs to stdout. i 
dont know how to debug this any further.. does anyone have any idea?
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