From 34996e42f82bfd60bc2c191e5cae3c6ab233ec6c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 7 Aug 2024 15:11:27 +0200 Subject: Merging upstream version 6.9.7. Signed-off-by: Daniel Baumann --- sound/core/compress_offload.c | 134 +++++++++++++++--------------------------- 1 file changed, 46 insertions(+), 88 deletions(-) (limited to 'sound/core/compress_offload.c') diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c index 619371aa99..f0008fa2d8 100644 --- a/sound/core/compress_offload.c +++ b/sound/core/compress_offload.c @@ -127,9 +127,8 @@ static int snd_compr_open(struct inode *inode, struct file *f) init_waitqueue_head(&runtime->sleep); data->stream.runtime = runtime; f->private_data = (void *)data; - mutex_lock(&compr->lock); - ret = compr->ops->open(&data->stream); - mutex_unlock(&compr->lock); + scoped_guard(mutex, &compr->lock) + ret = compr->ops->open(&data->stream); if (ret) { kfree(runtime); kfree(data); @@ -288,7 +287,7 @@ static ssize_t snd_compr_write(struct file *f, const char __user *buf, return -EFAULT; stream = &data->stream; - mutex_lock(&stream->device->lock); + guard(mutex)(&stream->device->lock); /* write is allowed when stream is running or has been steup */ switch (stream->runtime->state) { case SNDRV_PCM_STATE_SETUP: @@ -296,7 +295,6 @@ static ssize_t snd_compr_write(struct file *f, const char __user *buf, case SNDRV_PCM_STATE_RUNNING: break; default: - mutex_unlock(&stream->device->lock); return -EBADFD; } @@ -322,7 +320,6 @@ static ssize_t snd_compr_write(struct file *f, const char __user *buf, pr_debug("stream prepared, Houston we are good to go\n"); } - mutex_unlock(&stream->device->lock); return retval; } @@ -339,7 +336,7 @@ static ssize_t snd_compr_read(struct file *f, char __user *buf, return -EFAULT; stream = &data->stream; - mutex_lock(&stream->device->lock); + guard(mutex)(&stream->device->lock); /* read is allowed when stream is running, paused, draining and setup * (yes setup is state which we transition to after stop, so if user @@ -350,11 +347,9 @@ static ssize_t snd_compr_read(struct file *f, char __user *buf, case SNDRV_PCM_STATE_PREPARED: case SNDRV_PCM_STATE_SUSPENDED: case SNDRV_PCM_STATE_DISCONNECTED: - retval = -EBADFD; - goto out; + return -EBADFD; case SNDRV_PCM_STATE_XRUN: - retval = -EPIPE; - goto out; + return -EPIPE; } avail = snd_compr_get_avail(stream); @@ -363,17 +358,13 @@ static ssize_t snd_compr_read(struct file *f, char __user *buf, if (avail > count) avail = count; - if (stream->ops->copy) { + if (stream->ops->copy) retval = stream->ops->copy(stream, buf, avail); - } else { - retval = -ENXIO; - goto out; - } + else + return -ENXIO; if (retval > 0) stream->runtime->total_bytes_transferred += retval; -out: - mutex_unlock(&stream->device->lock); return retval; } @@ -402,13 +393,12 @@ static __poll_t snd_compr_poll(struct file *f, poll_table *wait) stream = &data->stream; - mutex_lock(&stream->device->lock); + guard(mutex)(&stream->device->lock); switch (stream->runtime->state) { case SNDRV_PCM_STATE_OPEN: case SNDRV_PCM_STATE_XRUN: - retval = snd_compr_get_poll(stream) | EPOLLERR; - goto out; + return snd_compr_get_poll(stream) | EPOLLERR; default: break; } @@ -433,11 +423,9 @@ static __poll_t snd_compr_poll(struct file *f, poll_table *wait) retval = snd_compr_get_poll(stream); break; default: - retval = snd_compr_get_poll(stream) | EPOLLERR; - break; + return snd_compr_get_poll(stream) | EPOLLERR; } -out: - mutex_unlock(&stream->device->lock); + return retval; } @@ -465,7 +453,7 @@ static int snd_compr_get_codec_caps(struct snd_compr_stream *stream, unsigned long arg) { int retval; - struct snd_compr_codec_caps *caps; + struct snd_compr_codec_caps *caps __free(kfree) = NULL; if (!stream->ops->get_codec_caps) return -ENXIO; @@ -476,12 +464,9 @@ snd_compr_get_codec_caps(struct snd_compr_stream *stream, unsigned long arg) retval = stream->ops->get_codec_caps(stream, caps); if (retval) - goto out; + return retval; if (copy_to_user((void __user *)arg, caps, sizeof(*caps))) - retval = -EFAULT; - -out: - kfree(caps); + return -EFAULT; return retval; } #endif /* !COMPR_CODEC_CAPS_OVERFLOW */ @@ -586,7 +571,7 @@ static int snd_compress_check_input(struct snd_compr_params *params) static int snd_compr_set_params(struct snd_compr_stream *stream, unsigned long arg) { - struct snd_compr_params *params; + struct snd_compr_params *params __free(kfree) = NULL; int retval; if (stream->runtime->state == SNDRV_PCM_STATE_OPEN || stream->next_track) { @@ -596,24 +581,22 @@ snd_compr_set_params(struct snd_compr_stream *stream, unsigned long arg) */ params = memdup_user((void __user *)arg, sizeof(*params)); if (IS_ERR(params)) - return PTR_ERR(params); + return PTR_ERR(no_free_ptr(params)); retval = snd_compress_check_input(params); if (retval) - goto out; + return retval; retval = snd_compr_allocate_buffer(stream, params); - if (retval) { - retval = -ENOMEM; - goto out; - } + if (retval) + return -ENOMEM; retval = stream->ops->set_params(stream, params); if (retval) - goto out; + return retval; if (stream->next_track) - goto out; + return retval; stream->metadata_set = false; stream->next_track = false; @@ -622,15 +605,13 @@ snd_compr_set_params(struct snd_compr_stream *stream, unsigned long arg) } else { return -EPERM; } -out: - kfree(params); return retval; } static int snd_compr_get_params(struct snd_compr_stream *stream, unsigned long arg) { - struct snd_codec *params; + struct snd_codec *params __free(kfree) = NULL; int retval; if (!stream->ops->get_params) @@ -641,12 +622,9 @@ snd_compr_get_params(struct snd_compr_stream *stream, unsigned long arg) return -ENOMEM; retval = stream->ops->get_params(stream, params); if (retval) - goto out; + return retval; if (copy_to_user((char __user *)arg, params, sizeof(*params))) - retval = -EFAULT; - -out: - kfree(params); + return -EFAULT; return retval; } @@ -805,12 +783,10 @@ static void error_delayed_work(struct work_struct *work) stream = container_of(work, struct snd_compr_stream, error_work.work); - mutex_lock(&stream->device->lock); + guard(mutex)(&stream->device->lock); stream->ops->trigger(stream, SNDRV_PCM_TRIGGER_STOP); wake_up(&stream->runtime->sleep); - - mutex_unlock(&stream->device->lock); } /** @@ -967,70 +943,52 @@ static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg) { struct snd_compr_file *data = f->private_data; struct snd_compr_stream *stream; - int retval = -ENOTTY; if (snd_BUG_ON(!data)) return -EFAULT; stream = &data->stream; - mutex_lock(&stream->device->lock); + guard(mutex)(&stream->device->lock); switch (_IOC_NR(cmd)) { case _IOC_NR(SNDRV_COMPRESS_IOCTL_VERSION): - retval = put_user(SNDRV_COMPRESS_VERSION, + return put_user(SNDRV_COMPRESS_VERSION, (int __user *)arg) ? -EFAULT : 0; - break; case _IOC_NR(SNDRV_COMPRESS_GET_CAPS): - retval = snd_compr_get_caps(stream, arg); - break; + return snd_compr_get_caps(stream, arg); #ifndef COMPR_CODEC_CAPS_OVERFLOW case _IOC_NR(SNDRV_COMPRESS_GET_CODEC_CAPS): - retval = snd_compr_get_codec_caps(stream, arg); - break; + return snd_compr_get_codec_caps(stream, arg); #endif case _IOC_NR(SNDRV_COMPRESS_SET_PARAMS): - retval = snd_compr_set_params(stream, arg); - break; + return snd_compr_set_params(stream, arg); case _IOC_NR(SNDRV_COMPRESS_GET_PARAMS): - retval = snd_compr_get_params(stream, arg); - break; + return snd_compr_get_params(stream, arg); case _IOC_NR(SNDRV_COMPRESS_SET_METADATA): - retval = snd_compr_set_metadata(stream, arg); - break; + return snd_compr_set_metadata(stream, arg); case _IOC_NR(SNDRV_COMPRESS_GET_METADATA): - retval = snd_compr_get_metadata(stream, arg); - break; + return snd_compr_get_metadata(stream, arg); case _IOC_NR(SNDRV_COMPRESS_TSTAMP): - retval = snd_compr_tstamp(stream, arg); - break; + return snd_compr_tstamp(stream, arg); case _IOC_NR(SNDRV_COMPRESS_AVAIL): - retval = snd_compr_ioctl_avail(stream, arg); - break; + return snd_compr_ioctl_avail(stream, arg); case _IOC_NR(SNDRV_COMPRESS_PAUSE): - retval = snd_compr_pause(stream); - break; + return snd_compr_pause(stream); case _IOC_NR(SNDRV_COMPRESS_RESUME): - retval = snd_compr_resume(stream); - break; + return snd_compr_resume(stream); case _IOC_NR(SNDRV_COMPRESS_START): - retval = snd_compr_start(stream); - break; + return snd_compr_start(stream); case _IOC_NR(SNDRV_COMPRESS_STOP): - retval = snd_compr_stop(stream); - break; + return snd_compr_stop(stream); case _IOC_NR(SNDRV_COMPRESS_DRAIN): - retval = snd_compr_drain(stream); - break; + return snd_compr_drain(stream); case _IOC_NR(SNDRV_COMPRESS_PARTIAL_DRAIN): - retval = snd_compr_partial_drain(stream); - break; + return snd_compr_partial_drain(stream); case _IOC_NR(SNDRV_COMPRESS_NEXT_TRACK): - retval = snd_compr_next_track(stream); - break; - + return snd_compr_next_track(stream); } - mutex_unlock(&stream->device->lock); - return retval; + + return -ENOTTY; } /* support of 32bit userspace on 64bit platforms */ -- cgit v1.2.3