summaryrefslogtreecommitdiffstats
path: root/sound/usb/usx2y
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2018-01-31 09:25:20 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-01-31 09:25:20 -0800
commit19e7b5f99474107e8d0b4b3e4652fa19ddb87efc (patch)
tree49f15b76c07b4c90d6fbd17b49d69017c81a4b58 /sound/usb/usx2y
parent26064ea409b4d4acb05903a36f3fe2fdccb3d8aa (diff)
parentce4c253573ad184603e0fa77876ba155b0cde46d (diff)
downloadlinux-19e7b5f99474107e8d0b4b3e4652fa19ddb87efc.tar.gz
linux-19e7b5f99474107e8d0b4b3e4652fa19ddb87efc.tar.bz2
linux-19e7b5f99474107e8d0b4b3e4652fa19ddb87efc.zip
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro: "All kinds of misc stuff, without any unifying topic, from various people. Neil's d_anon patch, several bugfixes, introduction of kvmalloc analogue of kmemdup_user(), extending bitfield.h to deal with fixed-endians, assorted cleanups all over the place..." * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (28 commits) alpha: osf_sys.c: use timespec64 where appropriate alpha: osf_sys.c: fix put_tv32 regression jffs2: Fix use-after-free bug in jffs2_iget()'s error handling path dcache: delete unused d_hash_mask dcache: subtract d_hash_shift from 32 in advance fs/buffer.c: fold init_buffer() into init_page_buffers() fs: fold __inode_permission() into inode_permission() fs: add RWF_APPEND sctp: use vmemdup_user() rather than badly open-coding memdup_user() snd_ctl_elem_init_enum_names(): switch to vmemdup_user() replace_user_tlv(): switch to vmemdup_user() new primitive: vmemdup_user() memdup_user(): switch to GFP_USER eventfd: fold eventfd_ctx_get() into eventfd_ctx_fileget() eventfd: fold eventfd_ctx_read() into eventfd_read() eventfd: convert to use anon_inode_getfd() nfs4file: get rid of pointless include of btrfs.h uvc_v4l2: clean copyin/copyout up vme_user: don't use __copy_..._user() usx2y: don't bother with memdup_user() for 16-byte structure ...
Diffstat (limited to 'sound/usb/usx2y')
-rw-r--r--sound/usb/usx2y/us122l.c43
-rw-r--r--sound/usb/usx2y/usX2Yhwdep.c28
2 files changed, 31 insertions, 40 deletions
diff --git a/sound/usb/usx2y/us122l.c b/sound/usb/usx2y/us122l.c
index 509680d9b698..e2be10d17118 100644
--- a/sound/usb/usx2y/us122l.c
+++ b/sound/usb/usx2y/us122l.c
@@ -378,7 +378,7 @@ out:
static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
unsigned cmd, unsigned long arg)
{
- struct usb_stream_config *cfg;
+ struct usb_stream_config cfg;
struct us122l *us122l = hw->private_data;
struct usb_stream *s;
unsigned min_period_frames;
@@ -388,24 +388,21 @@ static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS)
return -ENOTTY;
- cfg = memdup_user((void *)arg, sizeof(*cfg));
- if (IS_ERR(cfg))
- return PTR_ERR(cfg);
+ if (copy_from_user(&cfg, (void __user *)arg, sizeof(cfg)))
+ return -EFAULT;
+
+ if (cfg.version != USB_STREAM_INTERFACE_VERSION)
+ return -ENXIO;
- if (cfg->version != USB_STREAM_INTERFACE_VERSION) {
- err = -ENXIO;
- goto free;
- }
high_speed = us122l->dev->speed == USB_SPEED_HIGH;
- if ((cfg->sample_rate != 44100 && cfg->sample_rate != 48000 &&
+ if ((cfg.sample_rate != 44100 && cfg.sample_rate != 48000 &&
(!high_speed ||
- (cfg->sample_rate != 88200 && cfg->sample_rate != 96000))) ||
- cfg->frame_size != 6 ||
- cfg->period_frames > 0x3000) {
- err = -EINVAL;
- goto free;
- }
- switch (cfg->sample_rate) {
+ (cfg.sample_rate != 88200 && cfg.sample_rate != 96000))) ||
+ cfg.frame_size != 6 ||
+ cfg.period_frames > 0x3000)
+ return -EINVAL;
+
+ switch (cfg.sample_rate) {
case 44100:
min_period_frames = 48;
break;
@@ -418,10 +415,8 @@ static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
}
if (!high_speed)
min_period_frames <<= 1;
- if (cfg->period_frames < min_period_frames) {
- err = -EINVAL;
- goto free;
- }
+ if (cfg.period_frames < min_period_frames)
+ return -EINVAL;
snd_power_wait(hw->card, SNDRV_CTL_POWER_D0);
@@ -430,24 +425,22 @@ static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
if (!us122l->master)
us122l->master = file;
else if (us122l->master != file) {
- if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg))) {
+ if (!s || memcmp(&cfg, &s->cfg, sizeof(cfg))) {
err = -EIO;
goto unlock;
}
us122l->slave = file;
}
- if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg)) ||
+ if (!s || memcmp(&cfg, &s->cfg, sizeof(cfg)) ||
s->state == usb_stream_xrun) {
us122l_stop(us122l);
- if (!us122l_start(us122l, cfg->sample_rate, cfg->period_frames))
+ if (!us122l_start(us122l, cfg.sample_rate, cfg.period_frames))
err = -EIO;
else
err = 1;
}
unlock:
mutex_unlock(&us122l->mutex);
-free:
- kfree(cfg);
wake_up_all(&us122l->sk.sleep);
return err;
}
diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c
index 8b0a1eae573c..07d15bae75bc 100644
--- a/sound/usb/usx2y/usX2Yhwdep.c
+++ b/sound/usb/usx2y/usX2Yhwdep.c
@@ -198,24 +198,22 @@ static int snd_usX2Y_hwdep_dsp_load(struct snd_hwdep *hw,
struct snd_hwdep_dsp_image *dsp)
{
struct usX2Ydev *priv = hw->private_data;
- int lret, err = -EINVAL;
- snd_printdd( "dsp_load %s\n", dsp->name);
+ struct usb_device* dev = priv->dev;
+ int lret, err;
+ char *buf;
- if (access_ok(VERIFY_READ, dsp->image, dsp->length)) {
- struct usb_device* dev = priv->dev;
- char *buf;
+ snd_printdd( "dsp_load %s\n", dsp->name);
- buf = memdup_user(dsp->image, dsp->length);
- if (IS_ERR(buf))
- return PTR_ERR(buf);
+ buf = memdup_user(dsp->image, dsp->length);
+ if (IS_ERR(buf))
+ return PTR_ERR(buf);
- err = usb_set_interface(dev, 0, 1);
- if (err)
- snd_printk(KERN_ERR "usb_set_interface error \n");
- else
- err = usb_bulk_msg(dev, usb_sndbulkpipe(dev, 2), buf, dsp->length, &lret, 6000);
- kfree(buf);
- }
+ err = usb_set_interface(dev, 0, 1);
+ if (err)
+ snd_printk(KERN_ERR "usb_set_interface error \n");
+ else
+ err = usb_bulk_msg(dev, usb_sndbulkpipe(dev, 2), buf, dsp->length, &lret, 6000);
+ kfree(buf);
if (err)
return err;
if (dsp->index == 1) {