diff options
| author | Takashi Iwai <tiwai@suse.de> | 2017-05-21 10:19:16 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2017-06-02 19:38:25 +0200 |
| commit | 66b5542e3a781091920430da42640bdf40499dea (patch) | |
| tree | 7a872673671cd01e32ec606d55e85f6ef838a810 /drivers/usb | |
| parent | 68541213720df9bb7904cc1fecab563d424849ae (diff) | |
| download | blackbird-op-linux-66b5542e3a781091920430da42640bdf40499dea.tar.gz blackbird-op-linux-66b5542e3a781091920430da42640bdf40499dea.zip | |
usb: gadget: u_uac1: Kill set_fs() usage
With the new API to perform the in-kernel buffer copy, we can get rid
of set_fs() usage in this driver, finally.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/function/u_uac1.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/usb/gadget/function/u_uac1.c b/drivers/usb/gadget/function/u_uac1.c index c78c84138a28..ca88e4c0fd1e 100644 --- a/drivers/usb/gadget/function/u_uac1.c +++ b/drivers/usb/gadget/function/u_uac1.c @@ -157,7 +157,6 @@ size_t u_audio_playback(struct gaudio *card, void *buf, size_t count) struct gaudio_snd_dev *snd = &card->playback; struct snd_pcm_substream *substream = snd->substream; struct snd_pcm_runtime *runtime = substream->runtime; - mm_segment_t old_fs; ssize_t result; snd_pcm_sframes_t frames; @@ -174,15 +173,11 @@ try_again: } frames = bytes_to_frames(runtime, count); - old_fs = get_fs(); - set_fs(KERNEL_DS); - result = snd_pcm_lib_write(snd->substream, (void __user *)buf, frames); + result = snd_pcm_kernel_write(snd->substream, buf, frames); if (result != frames) { ERROR(card, "Playback error: %d\n", (int)result); - set_fs(old_fs); goto try_again; } - set_fs(old_fs); return 0; } |
