diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-07-21 17:16:09 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-07-21 17:16:09 -0300 |
commit | 4411a04f871d94ae997fb7262a428fe2ee988eb3 (patch) | |
tree | 92cb073311cb6c2eeb256969112ec61f877982d9 /drivers/usb/gadget/legacy | |
parent | b907a8622e39eecfc4b243f3be3ad26559d1faee (diff) |
Linux-libre 4.6.4-gnupck-4.6.4-gnu
Diffstat (limited to 'drivers/usb/gadget/legacy')
-rw-r--r-- | drivers/usb/gadget/legacy/inode.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index e64479f88..aa3707bde 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -938,8 +938,11 @@ ep0_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr) struct usb_ep *ep = dev->gadget->ep0; struct usb_request *req = dev->req; - if ((retval = setup_req (ep, req, 0)) == 0) - retval = usb_ep_queue (ep, req, GFP_ATOMIC); + if ((retval = setup_req (ep, req, 0)) == 0) { + spin_unlock_irq (&dev->lock); + retval = usb_ep_queue (ep, req, GFP_KERNEL); + spin_lock_irq (&dev->lock); + } dev->state = STATE_DEV_CONNECTED; /* assume that was SET_CONFIGURATION */ @@ -1457,8 +1460,11 @@ delegate: w_length); if (value < 0) break; + + spin_unlock (&dev->lock); value = usb_ep_queue (gadget->ep0, dev->req, - GFP_ATOMIC); + GFP_KERNEL); + spin_lock (&dev->lock); if (value < 0) { clean_req (gadget->ep0, dev->req); break; @@ -1481,11 +1487,14 @@ delegate: if (value >= 0 && dev->state != STATE_DEV_SETUP) { req->length = value; req->zero = value < w_length; - value = usb_ep_queue (gadget->ep0, req, GFP_ATOMIC); + + spin_unlock (&dev->lock); + value = usb_ep_queue (gadget->ep0, req, GFP_KERNEL); if (value < 0) { DBG (dev, "ep_queue --> %d\n", value); req->status = 0; } + return value; } /* device stalls when value < 0 */ |