Module: xenomai-abe
Branch: analogy
Commit: eb5245f7b59be9919a3cc2a0d29a7d28259c65e0
URL:
http://git.xenomai.org/?p=xenomai-abe.git;a=commit;h=eb5245f7b59be9919a3cc2a0d29a7d28259c65e0
Author: Alexis Berlemont <alexis.berlem...@gmail.com>
Date: Wed Jan 6 23:07:59 2010 +0100
analogy: fix an ugly access in NI MIO driver
In the function init_ao_67xx(), the AO subdevice pointer was retrieved
by going through the transfer structure which initialization is not
complete.
---
.../analogy/national_instruments/mio_common.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/ksrc/drivers/analogy/national_instruments/mio_common.c
b/ksrc/drivers/analogy/national_instruments/mio_common.c
index c722384..db9762a 100644
--- a/ksrc/drivers/analogy/national_instruments/mio_common.c
+++ b/ksrc/drivers/analogy/national_instruments/mio_common.c
@@ -3732,9 +3732,14 @@ void mio_common_detach(a4l_dev_t * dev)
static void init_ao_67xx(a4l_dev_t * dev)
{
- a4l_subd_t *subd = dev->transfer.subds[NI_AO_SUBDEV];
+ a4l_subd_t *subd = a4l_get_subd(dev, NI_AO_SUBDEV);
int i;
+ if (subd == NULL) {
+ a4l_err(dev, "%s: unable to find AO subdevice\n", __FUNCTION__);
+ return;
+ }
+
for (i = 0; i < subd->chan_desc->length; i++)
ni_ao_win_outw(dev, AO_Channel(i) | 0x0,
AO_Configuration_2_67xx);
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