Merge branch 'linus' of master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa

* 'linus' of master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa: (212 commits)
  [PATCH] Fix breakage with CONFIG_SYSFS_DEPRECATED
  [ALSA] version 1.0.14rc2
  [ALSA] ASoC documentation updates
  [ALSA] ca0106 - Add missing sysfs device assignment
  [ALSA] aoa i2sbus: Stop Apple i2s DMA gracefully
  [ALSA] hda-codec - Add support for Fujitsu PI1556 Realtek ALC880
  [ALSA] aoa: remove suspend/resume printks
  [ALSA] Fix possible deadlocks in sequencer at removal of ports
  [ALSA] emu10k1 - Fix STAC9758 front channel
  [ALSA] soc - Clean up with kmemdup()
  [ALSA] snd-ak4114: Fix two array overflows
  [ALSA] ac97_bus power management
  [ALSA] usbaudio - Add support for Edirol UA-101
  [ALSA] hda-codec - Add ALC861VD/ALC660VD support
  [ALSA] soc - ASoC 0.13 Sharp poodle machine
  [ALSA] soc - ASoC 0.13 Sharp tosa machine
  [ALSA] soc - ASoC 0.13 spitz machine
  [ALSA] soc - ASoC Sharp corgi machine
  [ALSA] soc - ASoC 0.13 pxa2xx DMA
  [ALSA] soc - ASoC 0.13 pxa2xx AC97 driver
  ...

1 files changed, 14 insertions, 8 deletions

diff --git a/sound/core/init.c b/sound/core/init.c
index a4cc6b155ae9..db6103733742 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -114,22 +114,28 @@ struct snd_card *snd_card_new(int idx, const char *xid,
         if (idx < 0) {
                 int idx2;
                 for (idx2 = 0; idx2 < SNDRV_CARDS; idx2++)
+                        /* idx == -1 == 0xffff means: take any free slot */
                         if (~snd_cards_lock & idx & 1<<idx2) {
                                 idx = idx2;
                                 if (idx >= snd_ecards_limit)
                                         snd_ecards_limit = idx + 1;
                                 break;
                         }
-        } else if (idx < snd_ecards_limit) {
-                if (snd_cards_lock & (1 << idx))
-                        err = -ENODEV;  /* invalid */
-        } else if (idx < SNDRV_CARDS)
-                snd_ecards_limit = idx + 1; /* increase the limit */
-        else
-                err = -ENODEV;
+        } else {
+                 if (idx < snd_ecards_limit) {
+                        if (snd_cards_lock & (1 << idx))
+                                err = -EBUSY;   /* invalid */
+                } else {
+                        if (idx < SNDRV_CARDS)
+                                snd_ecards_limit = idx + 1; /* increase the limit */
+                        else
+                                err = -ENODEV;
+                }
+        }
         if (idx < 0 || err < 0) {
                 mutex_unlock(&snd_card_mutex);
-                snd_printk(KERN_ERR "cannot find the slot for index %d (range 0-%i)\n", idx, snd_ecards_limit - 1);
+                snd_printk(KERN_ERR "cannot find the slot for index %d (range 0-%i), error: %d\n",
+                         idx, snd_ecards_limit - 1, err);
                 goto __error;
         }
         snd_cards_lock |= 1 << idx;             /* lock it */