After sleeping on a wait queue, signal_pending(current) should be checked (not before sleeping).
Acked-by: Alessandro Rubini <[email protected]> Signed-off-by: Federico Vaga <[email protected]> --- drivers/staging/comedi/comedi_fops.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 21d8c1c..f4a60d5 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -1640,11 +1640,11 @@ static ssize_t comedi_write(struct file *file, const char __user *buf, retval = -EAGAIN; break; } + schedule(); if (signal_pending(current)) { retval = -ERESTARTSYS; break; } - schedule(); if (!s->busy) break; if (s->busy != file) { @@ -1741,11 +1741,11 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes, retval = -EAGAIN; break; } + schedule(); if (signal_pending(current)) { retval = -ERESTARTSYS; break; } - schedule(); if (!s->busy) { retval = 0; break; -- 1.5.6.5 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
