diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2016-04-02 06:51:08 +0200 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-04-04 14:18:37 +0200 |
| commit | 4fc50ba5965ac2b360499d4a23eb10d04414dd36 (patch) | |
| tree | 1a59f269b569aef2b01b74546e6a9adfa540f0ea | |
| parent | usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer (diff) | |
| download | linux-4fc50ba5965ac2b360499d4a23eb10d04414dd36.tar.xz linux-4fc50ba5965ac2b360499d4a23eb10d04414dd36.zip | |
usb: gadget: f_midi: unlock on error
We added some new locking here, but missed an error path where we need
to unlock.
Fixes: 9acdf4df2fc4 ('usb: gadget: f_midi: added spinlock on transmit function')
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Felipe F. Tonello <eu@felipetonello.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| -rw-r--r-- | drivers/usb/gadget/function/f_midi.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c index 9ad51dcab982..58fc199a18ec 100644 --- a/drivers/usb/gadget/function/f_midi.c +++ b/drivers/usb/gadget/function/f_midi.c @@ -611,8 +611,10 @@ static void f_midi_transmit(struct f_midi *midi) do { ret = f_midi_do_transmit(midi, ep); - if (ret < 0) + if (ret < 0) { + spin_unlock_irqrestore(&midi->transmit_lock, flags); goto drop_out; + } } while (ret); spin_unlock_irqrestore(&midi->transmit_lock, flags); |