[PATCH 2/2] staging: comedi: addi_apci_2032: document the spinlock_t definition

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Add some comments to the private data tp quiet the checkpatch.pl
issue about:

CHECK: spinlock_t definition without comment

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
We might be able to just use comedi_subdevice 'spin_lock' instead
and remove the 'spinlock' from the private data. Ian?

 drivers/staging/comedi/drivers/addi_apci_2032.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/addi_apci_2032.c b/drivers/staging/comedi/drivers/addi_apci_2032.c
index e14545d..50f9eb2 100644
--- a/drivers/staging/comedi/drivers/addi_apci_2032.c
+++ b/drivers/staging/comedi/drivers/addi_apci_2032.c
@@ -44,9 +44,9 @@
 #define APCI2032_WDOG_REG		0x10
 
 struct apci2032_int_private {
-	spinlock_t spinlock;
-	bool active;
-	unsigned char enabled_isns;
+	spinlock_t spinlock;		/* protects the following members */
+	bool active;			/* an async command is running */
+	unsigned char enabled_isns;	/* mask of enabled interrupt channels */
 };
 
 static int apci2032_do_insn_bits(struct comedi_device *dev,
-- 
2.5.1

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