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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2015-12-31 13:58:13 +0900
committerTakashi Iwai <tiwai@suse.de>2016-01-06 10:18:54 +0100
commita2875a92b8413b4d7eacf96802c9718aeeb0363f (patch)
tree6562f3b33a8310cca9e0fb181486272923599406 /sound
parentb59fb1900b4feedd2fa9256326e65b5632627465 (diff)
ALSA: dice: purge transaction initialization at timeout of Dice notification
In previous commit, card registration is processed under situation with few bus reset. There's no need to add a workaround of transaction re-initialization at timeout. This commit purges the re-initialization. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/firewire/dice/dice-transaction.c31
1 files changed, 8 insertions, 23 deletions
diff --git a/sound/firewire/dice/dice-transaction.c b/sound/firewire/dice/dice-transaction.c
index fdb7841c52e3..55c1fbf31626 100644
--- a/sound/firewire/dice/dice-transaction.c
+++ b/sound/firewire/dice/dice-transaction.c
@@ -65,16 +65,15 @@ static unsigned int get_clock_info(struct snd_dice *dice, __be32 *info)
static int set_clock_info(struct snd_dice *dice,
unsigned int rate, unsigned int source)
{
- unsigned int retries = 3;
unsigned int i;
__be32 info;
u32 mask;
u32 clock;
int err;
-retry:
+
err = get_clock_info(dice, &info);
if (err < 0)
- goto end;
+ return err;
clock = be32_to_cpu(info);
if (source != UINT_MAX) {
@@ -87,10 +86,8 @@ retry:
if (snd_dice_rates[i] == rate)
break;
}
- if (i == ARRAY_SIZE(snd_dice_rates)) {
- err = -EINVAL;
- goto end;
- }
+ if (i == ARRAY_SIZE(snd_dice_rates))
+ return -EINVAL;
mask = CLOCK_RATE_MASK;
clock &= ~mask;
@@ -104,25 +101,13 @@ retry:
err = snd_dice_transaction_write_global(dice, GLOBAL_CLOCK_SELECT,
&info, 4);
if (err < 0)
- goto end;
+ return err;
- /* Timeout means it's invalid request, probably bus reset occurred. */
if (wait_for_completion_timeout(&dice->clock_accepted,
- msecs_to_jiffies(NOTIFICATION_TIMEOUT_MS)) == 0) {
- if (retries-- == 0) {
- err = -ETIMEDOUT;
- goto end;
- }
-
- err = snd_dice_transaction_reinit(dice);
- if (err < 0)
- goto end;
+ msecs_to_jiffies(NOTIFICATION_TIMEOUT_MS)) == 0)
+ return -ETIMEDOUT;
- msleep(500); /* arbitrary */
- goto retry;
- }
-end:
- return err;
+ return 0;
}
int snd_dice_transaction_get_clock_source(struct snd_dice *dice,