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| author | David S. Miller <davem@davemloft.net> | 2014-05-12 13:19:14 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-05-12 13:19:14 -0400 |
| commit | 5f013c9bc70214dcacd5fbed5a06c217d6ff9c59 (patch) | |
| tree | 34c3a633000e03bca57d0ce55d8759f86edecc03 /drivers/usb/gadget/f_fs.c | |
| parent | 51ee42efa0829cf9e46f8e1c0ab7a9ab6facf3f2 (diff) | |
| parent | 1a466ae96e9f749d02a73315a3e66375e61a61dd (diff) | |
| download | linux-5f013c9bc70214dcacd5fbed5a06c217d6ff9c59.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/altera/altera_sgdma.c
net/netlink/af_netlink.c
net/sched/cls_api.c
net/sched/sch_api.c
The netlink conflict dealt with moving to netlink_capable() and
netlink_ns_capable() in the 'net' tree vs. supporting 'tc' operations
in non-init namespaces. These were simple transformations from
netlink_capable to netlink_ns_capable.
The Altera driver conflict was simply code removal overlapping some
void pointer cast cleanups in net-next.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/usb/gadget/f_fs.c')
| -rw-r--r-- | drivers/usb/gadget/f_fs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 2e164dca08e8..1e12b3ee56fd 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -745,6 +745,12 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data) */ struct usb_gadget *gadget = epfile->ffs->gadget; + spin_lock_irq(&epfile->ffs->eps_lock); + /* In the meantime, endpoint got disabled or changed. */ + if (epfile->ep != ep) { + spin_unlock_irq(&epfile->ffs->eps_lock); + return -ESHUTDOWN; + } /* * Controller may require buffer size to be aligned to * maxpacketsize of an out endpoint. @@ -752,6 +758,7 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data) data_len = io_data->read ? usb_ep_align_maybe(gadget, ep->ep, io_data->len) : io_data->len; + spin_unlock_irq(&epfile->ffs->eps_lock); data = kmalloc(data_len, GFP_KERNEL); if (unlikely(!data)) |