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DFS: Remove the os_random() fallback

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Remove the fallback dependency on os_random() from the code that gets a
valid DFS channel. This is exceptionally unlikely to ever be called as
the call to os_get_random() is unlikely to fail. The intention is to
facilitate future removal of os_random() as it uses a low quality PRNG.

Signed-off-by: Nick Lowe <nick.lowe@lugatech.com>
This commit is contained in:
Nick Lowe 2016-02-09 14:49:35 +00:00 • committed by Jouni Malinen
parent 98a516eae8
commit 239952b4da
1 changed files with 1 additions and 1 deletions
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src/ap/dfs.c
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@ -450,7 +450,7 @@ dfs_get_valid_channel(struct hostapd_iface *iface,
return NULL; return NULL;
if (os_get_random((u8 *) &_rand, sizeof(_rand)) < 0) if (os_get_random((u8 *) &_rand, sizeof(_rand)) < 0)
_rand = os_random(); return NULL;
chan_idx = _rand % num_available_chandefs; chan_idx = _rand % num_available_chandefs;
dfs_find_channel(iface, &chan, chan_idx, skip_radar); dfs_find_channel(iface, &chan, chan_idx, skip_radar);