diff options
Diffstat (limited to 'drivers/usb/gadget/legacy/inode.c')
| -rw-r--r-- | drivers/usb/gadget/legacy/inode.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index a456267b6b78..b0a2b8805f41 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -361,6 +361,7 @@ ep_io (struct ep_data *epdata, void *buf, unsigned len) spin_unlock_irq (&epdata->dev->lock); DBG (epdata->dev, "endpoint gone\n"); + wait_for_completion(&done); epdata->status = -ENODEV; } } @@ -1828,8 +1829,9 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) spin_lock_irq (&dev->lock); value = -EINVAL; if (dev->buf) { + spin_unlock_irq(&dev->lock); kfree(kbuf); - goto fail; + return value; } dev->buf = kbuf; @@ -1876,8 +1878,8 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) value = usb_gadget_probe_driver(&gadgetfs_driver); if (value != 0) { - kfree (dev->buf); - dev->buf = NULL; + spin_lock_irq(&dev->lock); + goto fail; } else { /* at this point "good" hardware has for the first time * let the USB the host see us. alternatively, if users @@ -1894,6 +1896,9 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) return value; fail: + dev->config = NULL; + dev->hs_config = NULL; + dev->dev = NULL; spin_unlock_irq (&dev->lock); pr_debug ("%s: %s fail %zd, %p\n", shortname, __func__, value, dev); kfree (dev->buf); |