Merge branch 'wip-2.6.34' into old-private-masterarchived-private-master

1 files changed, 13 insertions, 6 deletions

diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index 70d6f25ba526..0f5a194695d9 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -242,8 +242,6 @@ static int assign_substream(struct snd_rawmidi *rmidi, int subdevice,
                 return -ENXIO;
         if (subdevice >= 0 && subdevice >= s->substream_count)
                 return -ENODEV;
-        if (s->substream_opened >= s->substream_count)
-                return -EAGAIN;
 
         list_for_each_entry(substream, &s->substreams, list) {
                 if (substream->opened) {
@@ -280,9 +278,10 @@ static int open_substream(struct snd_rawmidi *rmidi,
                 substream->active_sensing = 0;
                 if (mode & SNDRV_RAWMIDI_LFLG_APPEND)
                         substream->append = 1;
+                substream->pid = get_pid(task_pid(current));
+                rmidi->streams[substream->stream].substream_opened++;
         }
         substream->use_count++;
-        rmidi->streams[substream->stream].substream_opened++;
         return 0;
 }
 
@@ -413,7 +412,7 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
                 subdevice = -1;
                 read_lock(&card->ctl_files_rwlock);
                 list_for_each_entry(kctl, &card->ctl_files, list) {
-                        if (kctl->pid == current->pid) {
+                        if (kctl->pid == task_pid(current)) {
                                 subdevice = kctl->prefer_rawmidi_subdevice;
                                 if (subdevice != -1)
                                         break;
@@ -466,7 +465,6 @@ static void close_substream(struct snd_rawmidi *rmidi,
                             struct snd_rawmidi_substream *substream,
                             int cleanup)
 {
-        rmidi->streams[substream->stream].substream_opened--;
         if (--substream->use_count)
                 return;
 
@@ -491,6 +489,9 @@ static void close_substream(struct snd_rawmidi *rmidi,
         snd_rawmidi_runtime_free(substream);
         substream->opened = 0;
         substream->append = 0;
+        put_pid(substream->pid);
+        substream->pid = NULL;
+        rmidi->streams[substream->stream].substream_opened--;
 }
 
 static void rawmidi_release_priv(struct snd_rawmidi_file *rfile)
@@ -1256,7 +1257,7 @@ static ssize_t snd_rawmidi_write(struct file *file, const char __user *buf,
                         break;
                 count -= count1;
         }
-        if (file->f_flags & O_SYNC) {
+        if (file->f_flags & O_DSYNC) {
                 spin_lock_irq(&runtime->lock);
                 while (runtime->avail != runtime->buffer_size) {
                         wait_queue_t wait;
@@ -1338,6 +1339,9 @@ static void snd_rawmidi_proc_info_read(struct snd_info_entry *entry,
                                     substream->number,
                                     (unsigned long) substream->bytes);
                         if (substream->opened) {
+                                snd_iprintf(buffer,
+                                    "  Owner PID    : %d\n",
+                                    pid_vnr(substream->pid));
                                 runtime = substream->runtime;
                                 snd_iprintf(buffer,
                                     "  Mode         : %s\n"
@@ -1359,6 +1363,9 @@ static void snd_rawmidi_proc_info_read(struct snd_info_entry *entry,
                                     substream->number,
                                     (unsigned long) substream->bytes);
                         if (substream->opened) {
+                                snd_iprintf(buffer,
+                                            "  Owner PID    : %d\n",
+                                            pid_vnr(substream->pid));
                                 runtime = substream->runtime;
                                 snd_iprintf(buffer,
                                             "  Buffer size  : %lu\n"