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usb: gadget: f_fs: use complete() instead complete_all()

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There is only one waiter for the completion, therefore there
is no need to use complete_all(). Let's make that clear by
using complete() instead of complete_all().

The usage pattern of the completion is:

waiter context                          waker context
  reinit_completion()
  usb_esp_queue()
  wait_for_completion_interruptible()

					ffs_ep0_complete()
					  complete()

Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Daniel Wagner 2016-09-22 15:51:53 +02:00 committed by Felipe Balbi
parent 31faf878bd
commit 5bdcde90d7
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/gadget/function/f_fs.c
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@ -266,7 +266,7 @@ static void ffs_ep0_complete(struct usb_ep *ep, struct usb_request *req)
{
struct ffs_data *ffs = req->context;
complete_all(&ffs->ep0req_completion);
complete(&ffs->ep0req_completion);
}
static int __ffs_ep0_queue_wait(struct ffs_data *ffs, char *data, size_t len)