| | Date | Tue, 07 Dec 2010 16:57:20 -0800 | | From | Greg KH <> | | Subject | [063/289] isdn/gigaset: bas_gigaset locking fix |
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2.6.36-stable review patch. If anyone has any objections, please let us know.
------------------ From: Tilman Schmidt <tilman@imap.cc>
commit b33ffa5cbf52ee751bb8068218ebb3c742c5a515 upstream.
Unlock cs->lock before calling error_hangup() which is marked "cs->lock must not be held".
Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/isdn/gigaset/bas-gigaset.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/drivers/isdn/gigaset/bas-gigaset.c +++ b/drivers/isdn/gigaset/bas-gigaset.c @@ -1581,13 +1581,13 @@ static int gigaset_init_bchannel(struct ret = starturbs(bcs); if (ret < 0) { + spin_unlock_irqrestore(&cs->lock, flags); dev_err(cs->dev, "could not start isochronous I/O for channel B%d: %s\n", bcs->channel + 1, ret == -EFAULT ? "null URB" : get_usb_rcmsg(ret)); if (ret != -ENODEV) error_hangup(bcs); - spin_unlock_irqrestore(&cs->lock, flags); return ret; } @@ -1597,11 +1597,11 @@ static int gigaset_init_bchannel(struct dev_err(cs->dev, "could not open channel B%d\n", bcs->channel + 1); stopurbs(bcs->hw.bas); - if (ret != -ENODEV) - error_hangup(bcs); } spin_unlock_irqrestore(&cs->lock, flags); + if (ret < 0 && ret != -ENODEV) + error_hangup(bcs); return ret; }
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