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Staging: oslec bug fix

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I have just had a bug fix submitted for Oslec which I have applied to
Oslec SVN. The bug can potentially stops the echo canceller adapting
after a few seconds, although it hasn't caused many problems in
practice.

Signed-off-by: David Rowe <david@rowetel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
David Rowe 2009-05-20 11:18:27 +09:30 committed by Greg Kroah-Hartman
parent 99dc2a7f12
commit 0f51010e87
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/echo/echo.c
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@ -395,7 +395,7 @@ int16_t oslec_update(struct oslec_state *ec, int16_t tx, int16_t rx)
old = (int)ec->fir_state.history[ec->fir_state.curr_pos] *
(int)ec->fir_state.history[ec->fir_state.curr_pos];
ec->Pstates +=
((new - old) + (1 << ec->log2taps)) >> ec->log2taps;
((new - old) + (1 << (ec->log2taps-1))) >> ec->log2taps;
if (ec->Pstates < 0)
ec->Pstates = 0;
}