Changeset 399 for GPL/branches/uniaud32-2.0/alsa-kernel/drivers/dummy.c

Timestamp:

Oct 30, 2008, 9:57:08 AM (17 years ago)

Author:

Paul Smedley

Message:

Update source to ALSA 1.0.18

File:

• GPL/branches/uniaud32-2.0/alsa-kernel/drivers/dummy.c (modified) (10 diffs)

GPL/branches/uniaud32-2.0/alsa-kernel/drivers/dummy.c

@@ -48 +48 @@
 {
         int err;
-        if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
+        err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+        if (err < 0)
                 return err;
-        if ((err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX)) < 0)
+        err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX);
+        if (err < 0)
                 return err;
         return 0;
@@ -355 +357 @@
                 return -ENOMEM;
         runtime->private_data = dpcm;
+        /* makes the infrastructure responsible for freeing dpcm */
         runtime->private_free = snd_card_dummy_runtime_free;
         runtime->hw = snd_card_dummy_playback;
@@ -363 +366 @@
         if (substream->pcm->device & 2)
                 runtime->hw.info &= ~(SNDRV_PCM_INFO_MMAP|SNDRV_PCM_INFO_MMAP_VALID);
-        if ((err = add_playback_constraints(runtime)) < 0) {
-                kfree(dpcm);
+        err = add_playback_constraints(runtime);
+        if (err < 0)
                 return err;
-        }
 
         return 0;
@@ -380 +382 @@
                 return -ENOMEM;
         runtime->private_data = dpcm;
+        /* makes the infrastructure responsible for freeing dpcm */
         runtime->private_free = snd_card_dummy_runtime_free;
         runtime->hw = snd_card_dummy_capture;
@@ -388 +391 @@
         if (substream->pcm->device & 2)
                 runtime->hw.info &= ~(SNDRV_PCM_INFO_MMAP|SNDRV_PCM_INFO_MMAP_VALID);
-        if ((err = add_capture_constraints(runtime)) < 0) {
-                kfree(dpcm);
+        err = add_capture_constraints(runtime);
+        if (err < 0)
                 return err;
-        }
 
         return 0;
@@ -434 +436 @@
         int err;
 
-        if ((err = snd_pcm_new(dummy->card, "Dummy PCM", device,
-                               substreams, substreams, &pcm)) < 0)
+        err = snd_pcm_new(dummy->card, "Dummy PCM", device,
+                               substreams, substreams, &pcm);
+        if (err < 0)
                 return err;
         dummy->pcm = pcm;
@@ -566 +569 @@
         int err;
 
-        snd_assert(dummy != NULL, return -EINVAL);
+        if (snd_BUG_ON(!dummy))
+                return -EINVAL;
         spin_lock_init(&dummy->mixer_lock);
         strcpy(card->mixername, "Dummy Mixer");
 
         for (idx = 0; idx < ARRAY_SIZE(snd_dummy_controls); idx++) {
-                if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_dummy_controls[idx], dummy))) < 0)
+                err = snd_ctl_add(card, snd_ctl_new1(&snd_dummy_controls[idx], dummy));
+                if (err < 0)
                         return err;
         }
@@ -595 +600 @@
                 if (pcm_substreams[dev] > MAX_PCM_SUBSTREAMS)
                         pcm_substreams[dev] = MAX_PCM_SUBSTREAMS;
-                if ((err = snd_card_dummy_pcm(dummy, idx, pcm_substreams[dev])) < 0)
+                err = snd_card_dummy_pcm(dummy, idx, pcm_substreams[dev]);
+                if (err < 0)
                         goto __nodev;
         }
-        if ((err = snd_card_dummy_new_mixer(dummy)) < 0)
+        err = snd_card_dummy_new_mixer(dummy);
+        if (err < 0)
                 goto __nodev;
         strcpy(card->driver, "Dummy");
@@ -606 +613 @@
         snd_card_set_dev(card, &devptr->dev);
 
-        if ((err = snd_card_register(card)) == 0) {
+        err = snd_card_register(card);
+        if (err == 0) {
                 platform_set_drvdata(devptr, card);
                 return 0;
@@ -669 +677 @@
         int i, cards, err;
 
-        if ((err = platform_driver_register(&snd_dummy_driver)) < 0)
+        err = platform_driver_register(&snd_dummy_driver);
+        if (err < 0)
                 return err;