diff options
| author | Banajit Goswami <bgoswami@codeaurora.org> | 2014-08-21 18:49:04 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 20:10:16 -0700 |
| commit | 4ce9b377bb52706e1c09f65510ffc2bac783231a (patch) | |
| tree | 2fef81cb37a8e16eee6a21da23ebd555a08669f6 | |
| parent | 9772b42f4818b434e105f76ac31512e4c9c6cafe (diff) | |
ASoC: core: Add compat ioctl support for listen driver
Change adds compat ioctl to listen driver for supporting 32 bit userspace
client when kernel is compiled for 64 bit.
Change-Id: Ie6a6fb1f2b6ea569e03b02bc520ef79b95c1009c
Signed-off-by: Gopikrishnaiah Anandan <agopik@codeaurora.org>
Signed-off-by: Banajit Goswami <bgoswami@codeaurora.org>
| -rw-r--r-- | sound/core/pcm_compat.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c index 7cfca1491f20..d3843924b1d1 100644 --- a/sound/core/pcm_compat.c +++ b/sound/core/pcm_compat.c @@ -502,6 +502,20 @@ static int snd_compressed_ioctl32(struct snd_pcm_substream *substream, pr_debug("%s called with cmd = %d\n", __func__, cmd); return err; } +static int snd_user_ioctl32(struct snd_pcm_substream *substream, + unsigned int cmd, void __user *arg) +{ + struct snd_pcm_runtime *runtime; + int err = -ENOIOCTLCMD; + + if (PCM_RUNTIME_CHECK(substream)) + return -ENXIO; + runtime = substream->runtime; + if (substream->ops->compat_ioctl) + err = substream->ops->compat_ioctl(substream, cmd, arg); + return err; +} + static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) { @@ -575,6 +589,8 @@ static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned l default: if (_IOC_TYPE(cmd) == 'C') return snd_compressed_ioctl32(substream, cmd, argp); + else if (_IOC_TYPE(cmd) == 'U') + return snd_user_ioctl32(substream, cmd, argp); } return -ENOIOCTLCMD; |