From 8f61812f1c203c38f7321b3b5d09761b45bc5b81 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Fri, 3 Mar 2006 14:08:58 +0000
Subject: [PATCH] return ENODEV for disconnected devices

Return -ENODEV instead of -ENOTTY for disconnected devices.
---
 src/pcm/pcm.c        | 8 ++++----
 src/pcm/pcm_dmix.c   | 6 +++---
 src/pcm/pcm_dshare.c | 6 +++---
 src/pcm/pcm_dsnoop.c | 8 ++++----
 src/pcm/pcm_local.h  | 2 +-
 5 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/src/pcm/pcm.c b/src/pcm/pcm.c
index 47f3501f..2f469c8a 100644
--- a/src/pcm/pcm.c
+++ b/src/pcm/pcm.c
@@ -2231,7 +2231,7 @@ int snd_pcm_wait(snd_pcm_t *pcm, int timeout)
 		case SND_PCM_STATE_SUSPENDED:
 			return -ESTRPIPE;
 		case SND_PCM_STATE_DISCONNECTED:
-			return -ENOTTY;	/* linux VFS does this? */
+			return -ENODEV;
 		default:
 			return 1;
 		}
@@ -2287,7 +2287,7 @@ int snd_pcm_wait_nocheck(snd_pcm_t *pcm, int timeout)
 				case SND_PCM_STATE_SUSPENDED:
 					return -ESTRPIPE;
 				case SND_PCM_STATE_DISCONNECTED:
-					return -ENOTTY;	/* linux VFS does this? */
+					return -ENODEV;
 				default:
 					return -EIO;
 				}
@@ -6350,7 +6350,7 @@ snd_pcm_sframes_t snd_pcm_read_areas(snd_pcm_t *pcm, const snd_pcm_channel_area_
 	case SND_PCM_STATE_SUSPENDED:
 		return -ESTRPIPE;
 	case SND_PCM_STATE_DISCONNECTED:
-		return -ENOTTY;
+		return -ENODEV;
 	default:
 		return -EBADFD;
 	}
@@ -6424,7 +6424,7 @@ snd_pcm_sframes_t snd_pcm_write_areas(snd_pcm_t *pcm, const snd_pcm_channel_area
 	case SND_PCM_STATE_SUSPENDED:
 		return -ESTRPIPE;
 	case SND_PCM_STATE_DISCONNECTED:
-		return -ENOTTY;
+		return -ENODEV;
 	default:
 		return -EBADFD;
 	}
diff --git a/src/pcm/pcm_dmix.c b/src/pcm/pcm_dmix.c
index ed500b85..5c00820f 100644
--- a/src/pcm/pcm_dmix.c
+++ b/src/pcm/pcm_dmix.c
@@ -338,7 +338,7 @@ static int snd_pcm_dmix_sync_ptr(snd_pcm_t *pcm)
 	switch (snd_pcm_state(dmix->spcm)) {
 	case SND_PCM_STATE_DISCONNECTED:
 		dmix->state = SND_PCM_STATE_DISCONNECTED;
-		return -ENOTTY;
+		return -ENODEV;
 	default:
 		break;
 	}
@@ -445,7 +445,7 @@ static int snd_pcm_dmix_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp)
 	case SNDRV_PCM_STATE_XRUN:
 		return -EPIPE;
 	case SNDRV_PCM_STATE_DISCONNECTED:
-		return -ENOTTY;
+		return -ENODEV;
 	default:
 		return -EBADFD;
 	}
@@ -467,7 +467,7 @@ static int snd_pcm_dmix_hwsync(snd_pcm_t *pcm)
 	case SNDRV_PCM_STATE_XRUN:
 		return -EPIPE;
 	case SNDRV_PCM_STATE_DISCONNECTED:
-		return -ENOTTY;
+		return -ENODEV;
 	default:
 		return -EBADFD;
 	}
diff --git a/src/pcm/pcm_dshare.c b/src/pcm/pcm_dshare.c
index d54b4031..31905fde 100644
--- a/src/pcm/pcm_dshare.c
+++ b/src/pcm/pcm_dshare.c
@@ -166,7 +166,7 @@ static int snd_pcm_dshare_sync_ptr(snd_pcm_t *pcm)
 	switch (snd_pcm_state(dshare->spcm)) {
 	case SND_PCM_STATE_DISCONNECTED:
 		dshare->state = SNDRV_PCM_STATE_DISCONNECTED;
-		return -ENOTTY;
+		return -ENODEV;
 	default:
 		break;
 	}
@@ -272,7 +272,7 @@ static int snd_pcm_dshare_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp)
 	case SNDRV_PCM_STATE_XRUN:
 		return -EPIPE;
 	case SNDRV_PCM_STATE_DISCONNECTED:
-		return -ENOTTY;
+		return -ENODEV;
 	default:
 		return -EBADFD;
 	}
@@ -292,7 +292,7 @@ static int snd_pcm_dshare_hwsync(snd_pcm_t *pcm)
 	case SNDRV_PCM_STATE_XRUN:
 		return -EPIPE;
 	case SNDRV_PCM_STATE_DISCONNECTED:
-		return -ENOTTY;
+		return -ENODEV;
 	default:
 		return -EBADFD;
 	}
diff --git a/src/pcm/pcm_dsnoop.c b/src/pcm/pcm_dsnoop.c
index fbb9d046..a9ea1429 100644
--- a/src/pcm/pcm_dsnoop.c
+++ b/src/pcm/pcm_dsnoop.c
@@ -119,7 +119,7 @@ static int snd_pcm_dsnoop_sync_ptr(snd_pcm_t *pcm)
 	switch (snd_pcm_state(dsnoop->spcm)) {
 	case SND_PCM_STATE_DISCONNECTED:
 		dsnoop->state = SNDRV_PCM_STATE_DISCONNECTED;
-		return -ENOTTY;
+		return -ENODEV;
 	default:
 		break;
 	}
@@ -190,7 +190,7 @@ static snd_pcm_state_t snd_pcm_dsnoop_state(snd_pcm_t *pcm)
 		return SND_PCM_STATE_SUSPENDED;
 	case SND_PCM_STATE_DISCONNECTED:
 		dsnoop->state = SNDRV_PCM_STATE_DISCONNECTED;
-		return -ENOTTY;
+		return -ENODEV;
 	default:
 		break;
 	}
@@ -215,7 +215,7 @@ static int snd_pcm_dsnoop_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp)
 	case SNDRV_PCM_STATE_XRUN:
 		return -EPIPE;
 	case SNDRV_PCM_STATE_DISCONNECTED:
-		return -ENOTTY;
+		return -ENODEV;
 	default:
 		return -EBADFD;
 	}
@@ -235,7 +235,7 @@ static int snd_pcm_dsnoop_hwsync(snd_pcm_t *pcm)
 	case SNDRV_PCM_STATE_XRUN:
 		return -EPIPE;
 	case SNDRV_PCM_STATE_DISCONNECTED:
-		return -ENOTTY;
+		return -ENODEV;
 	default:
 		return -EBADFD;
 	}
diff --git a/src/pcm/pcm_local.h b/src/pcm/pcm_local.h
index e458b469..e94125ad 100644
--- a/src/pcm/pcm_local.h
+++ b/src/pcm/pcm_local.h
@@ -288,7 +288,7 @@ static inline int snd_pcm_check_error(snd_pcm_t *pcm, int err)
 		case SND_PCM_STATE_SUSPENDED:
 			return -ESTRPIPE;
 		case SND_PCM_STATE_DISCONNECTED:
-			return -ENOTTY;
+			return -ENODEV;
 		default:
 			break;
 		}
-- 
2.47.1