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| author | Thomas Pugliese <thomas.pugliese@gmail.com> | 2014-04-23 14:32:27 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-24 12:45:40 -0700 |
| commit | 7584f2ebc18b6355f21be5fb2f75afbf3f781ce5 (patch) | |
| tree | 048f31e5c303f4fcbb1cd5d7110598ffeec72d0f /drivers/usb | |
| parent | c996b9379180ee578b9ea208bb4f197201bbb023 (diff) | |
| download | op-kernel-dev-7584f2ebc18b6355f21be5fb2f75afbf3f781ce5.zip op-kernel-dev-7584f2ebc18b6355f21be5fb2f75afbf3f781ce5.tar.gz | |
usb: wusbcore: convert nested lock to use spin_lock instead of spin_lock_irq
Nesting a spin_lock_irq/unlock_irq inside a lock that has already
disabled interrupts will enable interrupts before we are ready when
spin_unlock_irq is called. This patch converts the inner lock to use
spin_lock and spin_unlock instead.
Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/wusbcore/wa-xfer.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index c8e2a47..3e2e4ed 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -2390,10 +2390,10 @@ error_complete: done) { dev_info(dev, "Control EP stall. Queue delayed work.\n"); - spin_lock_irq(&wa->xfer_list_lock); + spin_lock(&wa->xfer_list_lock); /* move xfer from xfer_list to xfer_errored_list. */ list_move_tail(&xfer->list_node, &wa->xfer_errored_list); - spin_unlock_irq(&wa->xfer_list_lock); + spin_unlock(&wa->xfer_list_lock); spin_unlock_irqrestore(&xfer->lock, flags); queue_work(wusbd, &wa->xfer_error_work); } else { |
