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[ALSA] sound/pci: fix-up sleeping paths

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ENS1370/1+ driver,ES1968 driver,Intel8x0 driver,VIA82xx driver
VIA82xx-modem driver,AC97 Codec,ALI5451 driver,CS46xx driver
MIXART driver,RME HDSP driver,Trident driver,YMFPCI driver
Description: Fix-up sleeping in sound/pci. These changes fall under the
following two categories:

        1) Replace schedule_timeout() with msleep() to guarantee the
        task delays as expected. This also involved replacing/removing
        custom sleep functions.
        2) Do not assume jiffies will only increment by one if you
        request a 1 jiffy sleep, i.e. use time_after/time_before in
        while loops.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Nishanth Aravamudan
2005-07-09 10:13:22 +02:00
committed by Jaroslav Kysela
parent 072c01194d
commit ef21ca24fa
12 changed files with 42 additions and 68 deletions
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12
sound/pci/ens1370.c
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@@ -2018,21 +2018,11 @@ static int __devinit snd_ensoniq_create(snd_card_t * card,
if (pci->vendor == es1371_ac97_reset_hack[idx].vid &&
pci->device == es1371_ac97_reset_hack[idx].did &&
ensoniq->rev == es1371_ac97_reset_hack[idx].rev) {
unsigned long tmo;
signed long tmo2;
ensoniq->cssr |= ES_1371_ST_AC97_RST;
outl(ensoniq->cssr, ES_REG(ensoniq, STATUS));
/* need to delay around 20ms(bleech) to give
some CODECs enough time to wakeup */
tmo = jiffies + (HZ / 50) + 1;
while (1) {
tmo2 = tmo - jiffies;
if (tmo2 <= 0)
break;
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(tmo2);
}
msleep(20);
break;
}
/* AC'97 warm reset to start the bitclk */