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Commit 25ad9988 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman
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staging: comedi: pcmuio: document the spinlock_t variables 



Add some comments about the two spinlock_t variables in the private
data. Also, add come comments for the functions that do not need to
lock/unlock the spinlock.

Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4344158f

drivers/staging/comedi/drivers/pcmuio.c

+4 −2
Original line number Diff line number Diff line
@@ -128,8 +128,8 @@ static const struct pcmuio_board pcmuio_boards[] = { 
};



struct pcmuio_asic {

	spinlock_t pagelock;

	spinlock_t spinlock;

	spinlock_t pagelock;	/* protects the page registers */

	spinlock_t spinlock;	/* protects member variables */

	int enabled_mask;

	int active;

	int stop_count;
@@ -295,6 +295,7 @@ static void pcmuio_reset(struct comedi_device *dev) 
	}

}



/* chip->spinlock is already locked */

static void pcmuio_stop_intr(struct comedi_device *dev,

			     struct comedi_subdevice *s)

{
@@ -403,6 +404,7 @@ static irqreturn_t pcmuio_interrupt(int irq, void *d) 
	return handled ? IRQ_HANDLED : IRQ_NONE;

}



/* chip->spinlock is already locked */

static int pcmuio_start_intr(struct comedi_device *dev,

			     struct comedi_subdevice *s)

{