[ALSA] sound/pci: fix-up sleeping paths
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>
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index 2ae7961..d54f88a 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -84,16 +84,16 @@
static int snd_ymfpci_codec_ready(ymfpci_t *chip, int secondary)
{
- signed long end_time;
+ unsigned long end_time;
u32 reg = secondary ? YDSXGR_SECSTATUSADR : YDSXGR_PRISTATUSADR;
- end_time = (jiffies + ((3 * HZ) / 4)) + 1;
+ end_time = jiffies + msecs_to_jiffies(750);
do {
if ((snd_ymfpci_readw(chip, reg) & 0x8000) == 0)
return 0;
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
- } while (end_time - (signed long)jiffies >= 0);
+ } while (time_before(jiffies, end_time));
snd_printk("codec_ready: codec %i is not ready [0x%x]\n", secondary, snd_ymfpci_readw(chip, reg));
return -EBUSY;
}