diff options
| author | Takashi Iwai <tiwai@suse.de> | 2017-11-06 15:04:35 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2017-11-06 15:04:35 +0100 |
| commit | aed328fec0ebd4acce384556b98fd58974874246 (patch) | |
| tree | 49591c9e03e22f68203e8f8a2bfc8c009339b319 /sound | |
| parent | 727dede0ba8afbd8d19116d39f2ae8d19d00033d (diff) | |
| parent | f9a1c372299fed53d4b72bb601f7f3bfe6f9999c (diff) | |
| download | linux-aed328fec0ebd4acce384556b98fd58974874246.tar.bz2 | |
Merge branch 'topic/usb-ep-check-v2' into for-next
Pull another fix of URB EP type check.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/usb/usx2y/usb_stream.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/sound/usb/usx2y/usb_stream.c b/sound/usb/usx2y/usb_stream.c index e229abd21652..b0f8979ff2d2 100644 --- a/sound/usb/usx2y/usb_stream.c +++ b/sound/usb/usx2y/usb_stream.c @@ -56,7 +56,7 @@ check: lb, s->period_size); } -static void init_pipe_urbs(struct usb_stream_kernel *sk, unsigned use_packsize, +static int init_pipe_urbs(struct usb_stream_kernel *sk, unsigned use_packsize, struct urb **urbs, char *transfer, struct usb_device *dev, int pipe) { @@ -77,6 +77,8 @@ static void init_pipe_urbs(struct usb_stream_kernel *sk, unsigned use_packsize, urb->interval = 1; if (usb_pipeout(pipe)) continue; + if (usb_urb_ep_type_check(urb)) + return -EINVAL; urb->transfer_buffer_length = transfer_length; desc = urb->iso_frame_desc; @@ -87,9 +89,11 @@ static void init_pipe_urbs(struct usb_stream_kernel *sk, unsigned use_packsize, desc[p].length = maxpacket; } } + + return 0; } -static void init_urbs(struct usb_stream_kernel *sk, unsigned use_packsize, +static int init_urbs(struct usb_stream_kernel *sk, unsigned use_packsize, struct usb_device *dev, int in_pipe, int out_pipe) { struct usb_stream *s = sk->s; @@ -103,9 +107,12 @@ static void init_urbs(struct usb_stream_kernel *sk, unsigned use_packsize, sk->outurb[u] = usb_alloc_urb(sk->n_o_ps, GFP_KERNEL); } - init_pipe_urbs(sk, use_packsize, sk->inurb, indata, dev, in_pipe); - init_pipe_urbs(sk, use_packsize, sk->outurb, sk->write_page, dev, - out_pipe); + if (init_pipe_urbs(sk, use_packsize, sk->inurb, indata, dev, in_pipe) || + init_pipe_urbs(sk, use_packsize, sk->outurb, sk->write_page, dev, + out_pipe)) + return -EINVAL; + + return 0; } @@ -226,7 +233,11 @@ struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk, else sk->freqn = get_usb_high_speed_rate(sample_rate); - init_urbs(sk, use_packsize, dev, in_pipe, out_pipe); + if (init_urbs(sk, use_packsize, dev, in_pipe, out_pipe) < 0) { + usb_stream_free(sk); + return NULL; + } + sk->s->state = usb_stream_stopped; out: return sk->s; |