diff options
author | Alex Shi <alex.shi@linaro.org> | 2016-07-21 13:58:19 +0800 |
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committer | Alex Shi <alex.shi@linaro.org> | 2016-07-21 13:58:19 +0800 |
commit | 74b60e9f6f938d0cd4c7a71e583aee3cc6c5fbba (patch) | |
tree | 15cbca70f3f6d7e10da7d82154a78e6ca35dca8c /drivers/usb/gadget/legacy/inode.c | |
parent | f24f1475658431d60bcd4e6e5de951ba1663dd43 (diff) | |
parent | 1d508e233d21a7848cf54d7d03b40dac2d9ea873 (diff) |
Merge branch 'linux-linaro-lsk-v4.1' into linux-linaro-lsk-v4.1-rtlsk-v4.1-16.07-rt
Conflicts:
mm/swap.c
Diffstat (limited to 'drivers/usb/gadget/legacy/inode.c')
-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 7b6da0fde247..8c23636963bc 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -934,8 +934,11 @@ 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 */ @@ -1453,8 +1456,11 @@ 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; @@ -1477,11 +1483,14 @@ 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 */ |