Pull hp-machvec into release branch

[powerpc.git] / sound / core / oss / pcm_oss.c

diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index de7444c..842c28b 100644 (file)
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -850,7 +850,9 @@ static ssize_t snd_pcm_oss_write1(snd_pcm_substream_t *substream, const char __u
                                        return xfer > 0 ? xfer : -EAGAIN;
                        }
                } else {
-                       tmp = snd_pcm_oss_write2(substream, (const char *)buf, runtime->oss.period_bytes, 0);
+                       tmp = snd_pcm_oss_write2(substream,
+                                                (const char __force *)buf,
+                                                runtime->oss.period_bytes, 0);
                        if (tmp <= 0)
                                return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp;
                        runtime->oss.bytes += tmp;
@@ -926,7 +928,8 @@ static ssize_t snd_pcm_oss_read1(snd_pcm_substream_t *substream, char __user *bu
                        xfer += tmp;
                        runtime->oss.buffer_used -= tmp;
                } else {
-                       tmp = snd_pcm_oss_read2(substream, (char *)buf, runtime->oss.period_bytes, 0);
+                       tmp = snd_pcm_oss_read2(substream, (char __force *)buf,
+                                               runtime->oss.period_bytes, 0);
                        if (tmp <= 0)
                                return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp;
                        runtime->oss.bytes += tmp;
@@ -1540,7 +1543,11 @@ static int snd_pcm_oss_get_ptr(snd_pcm_oss_file_t *pcm_oss_file, int stream, str
        } else {
                delay = snd_pcm_oss_bytes(substream, delay);
                if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
-                       info.blocks = (runtime->oss.buffer_bytes - delay - fixup) / runtime->oss.period_bytes;
+                       snd_pcm_oss_setup_t *setup = substream->oss.setup;
+                       if (setup && setup->buggyptr)
+                               info.blocks = (runtime->oss.buffer_bytes - delay - fixup) / runtime->oss.period_bytes;
+                       else
+                               info.blocks = (delay + fixup) / runtime->oss.period_bytes;
                        info.bytes = (runtime->oss.bytes - delay) & INT_MAX;
                } else {
                        delay += fixup;
@@ -1705,13 +1712,12 @@ static int snd_pcm_oss_release_file(snd_pcm_oss_file_t *pcm_oss_file)
                if (snd_pcm_running(substream))
                        snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
                snd_pcm_stream_unlock_irq(substream);
-               if (substream->open_flag) {
+               if (substream->ffile != NULL) {
                        if (substream->ops->hw_free != NULL)
                                substream->ops->hw_free(substream);
                        substream->ops->close(substream);
-                       substream->open_flag = 0;
+                       substream->ffile = NULL;
                }
-               substream->ffile = NULL;
                snd_pcm_oss_release_substream(substream);
                snd_pcm_release_substream(substream);
        }
@@ -1734,7 +1740,7 @@ static int snd_pcm_oss_open_file(struct file *file,
        snd_assert(rpcm_oss_file != NULL, return -EINVAL);
        *rpcm_oss_file = NULL;
 
-       pcm_oss_file = kcalloc(1, sizeof(*pcm_oss_file), GFP_KERNEL);
+       pcm_oss_file = kzalloc(sizeof(*pcm_oss_file), GFP_KERNEL);
        if (pcm_oss_file == NULL)
                return -ENOMEM;
 
@@ -1778,14 +1784,13 @@ static int snd_pcm_oss_open_file(struct file *file,
                        snd_pcm_oss_release_file(pcm_oss_file);
                        return err;
                }
-               psubstream->open_flag = 1;
+               psubstream->ffile = file;
                err = snd_pcm_hw_constraints_complete(psubstream);
                if (err < 0) {
                        snd_printd("snd_pcm_hw_constraint_complete failed\n");
                        snd_pcm_oss_release_file(pcm_oss_file);
                        return err;
                }
-               psubstream->ffile = file;
                snd_pcm_oss_init_substream(psubstream, psetup, minor);
        }
        if (csubstream != NULL) {
@@ -1800,14 +1805,13 @@ static int snd_pcm_oss_open_file(struct file *file,
                        snd_pcm_oss_release_file(pcm_oss_file);
                        return err;
                }
-               csubstream->open_flag = 1;
+               csubstream->ffile = file;
                err = snd_pcm_hw_constraints_complete(csubstream);
                if (err < 0) {
                        snd_printd("snd_pcm_hw_constraint_complete failed\n");
                        snd_pcm_oss_release_file(pcm_oss_file);
                        return err;
                }
-               csubstream->ffile = file;
                snd_pcm_oss_init_substream(csubstream, csetup, minor);
        }
 
@@ -2350,6 +2354,8 @@ static void snd_pcm_oss_proc_write(snd_info_entry_t *entry,
                                template.partialfrag = 1;
                        } else if (!strcmp(str, "no-silence")) {
                                template.nosilence = 1;
+                       } else if (!strcmp(str, "buggy-ptr")) {
+                               template.buggyptr = 1;
                        }
                } while (*str);
                if (setup == NULL) {