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From: Giuliano Pochini on 3 Jun 2010 17:50

This patch has already been merged in 2.6.34:
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.34.y.git;a=commitdiff;h=b721e68bdc5b39c51bf6a1469f8d3663fbe03243

Since it fixes a /0 in the irq handler, please consider including it also
in the next maintenance release of 2.6.33.

This patch is against 2.6.33.5.


Signed-off-by: Giuliano Pochini <pochini(a)shiny.it>

--- a/sound/pci/echoaudio/echoaudio.c 2010-06-03 22:23:21.000000000 +0100
+++ b/sound/pci/echoaudio/echoaudio.c 2010-06-03 22:48:33.000000000 +0100
@@ -1821,7 +1821,9 @@ static irqreturn_t snd_echo_interrupt(in
/* The hardware doesn't tell us which substream caused the irq,
thus we have to check all running substreams. */
for (ss = 0; ss < DSP_MAXPIPES; ss++) {
- if ((substream = chip->substream[ss])) {
+ substream = chip->substream[ss];
+ if (substream && ((struct audiopipe *)substream->runtime->
+ private_data)->state == PIPE_STATE_STARTED) {
period = pcm_pointer(substream) /
substream->runtime->period_size;
if (period != chip->last_period[ss]) {


--
Giuliano.
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Prev: [PATCH] arch/tile: respond to reviews of the second code submission.
Next: TP_STORE_SIGINFO(SEND_SIG_FORCED) == OOPS