Module: xenomai-abe
Branch: analogy
Commit: 62adfe6787a24251c050b09bb4cae313a87b822e
URL:
http://git.xenomai.org/?p=xenomai-abe.git;a=commit;h=62adfe6787a24251c050b09bb4cae313a87b822e
Author: Alexis Berlemont <alexis.berlem...@gmail.com>
Date: Mon Dec 7 00:12:40 2009 +0100
analogy: properly manage cancel operations on synchronous subdevices
---
ksrc/drivers/analogy/transfer.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/ksrc/drivers/analogy/transfer.c b/ksrc/drivers/analogy/transfer.c
index c6306d9..598cb9e 100644
--- a/ksrc/drivers/analogy/transfer.c
+++ b/ksrc/drivers/analogy/transfer.c
@@ -286,9 +286,10 @@ int a4l_cancel_transfer(a4l_cxt_t * cxt, int idx_subd)
clear_bit(A4L_TSF_BUSY, &(dev->transfer.status[idx_subd]));
/* If the subdevice is command capable and
- if there is a command is under progress,
+ if a command is under progress,
disable it and free it... */
if (dev->transfer.bufs != NULL &&
+ dev->transfer.bufs[idx_subd] != NULL &&
dev->transfer.bufs[idx_subd]->cur_cmd != NULL) {
a4l_free_cmddesc(dev->transfer.bufs[idx_subd]->cur_cmd);
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