diff options
Diffstat (limited to 'sound/core/pcm_native.c')
| -rw-r--r-- | sound/core/pcm_native.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 53b5ada8f7c3..5e12e5bacbba 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -1563,25 +1563,25 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream) /* WARNING: Don't forget to fput back the file */ -static struct file *snd_pcm_file_fd(int fd) +static struct file *snd_pcm_file_fd(int fd, int *fput_needed) { struct file *file; struct inode *inode; unsigned int minor; - file = fget(fd); + file = fget_light(fd, fput_needed); if (!file) return NULL; inode = file->f_path.dentry->d_inode; if (!S_ISCHR(inode->i_mode) || imajor(inode) != snd_major) { - fput(file); + fput_light(file, *fput_needed); return NULL; } minor = iminor(inode); if (!snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_PLAYBACK) && !snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_CAPTURE)) { - fput(file); + fput_light(file, *fput_needed); return NULL; } return file; @@ -1597,8 +1597,9 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd) struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream1; struct snd_pcm_group *group; + int fput_needed; - file = snd_pcm_file_fd(fd); + file = snd_pcm_file_fd(fd, &fput_needed); if (!file) return -EBADFD; pcm_file = file->private_data; @@ -1633,7 +1634,7 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd) write_unlock_irq(&snd_pcm_link_rwlock); up_write(&snd_pcm_link_rwsem); _nolock: - fput(file); + fput_light(file, fput_needed); if (res < 0) kfree(group); return res; @@ -3038,7 +3039,7 @@ static int snd_pcm_mmap_status(struct snd_pcm_substream *substream, struct file return -EINVAL; area->vm_ops = &snd_pcm_vm_ops_status; area->vm_private_data = substream; - area->vm_flags |= VM_RESERVED; + area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; return 0; } @@ -3075,7 +3076,7 @@ static int snd_pcm_mmap_control(struct snd_pcm_substream *substream, struct file return -EINVAL; area->vm_ops = &snd_pcm_vm_ops_control; area->vm_private_data = substream; - area->vm_flags |= VM_RESERVED; + area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; return 0; } #else /* ! coherent mmap */ @@ -3169,7 +3170,7 @@ static const struct vm_operations_struct snd_pcm_vm_ops_data_fault = { int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *area) { - area->vm_flags |= VM_RESERVED; + area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; #ifdef ARCH_HAS_DMA_MMAP_COHERENT if (!substream->ops->page && substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV) |