Messages in this thread Patch in this message | | | Subject | [PATCH] fix O_NONBLOCK in dmasound_core | From | Al Viro <> | Date | Sat, 01 Nov 2008 18:19:49 +0000 |
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In 2.3.11-pre3 we had O_NONBLOCK handling broken in dmasound_core - the original code copied f_flags to open_mode and then checked for O_NONBLOCK in there, but that got changed to copying f_mode and O_NONBLOCK had not reached that field in any kernel version.
Since we do not care for any other bits, the fix is obvious...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- sound/oss/dmasound/dmasound.h | 2 +- sound/oss/dmasound/dmasound_core.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/sound/oss/dmasound/dmasound.h b/sound/oss/dmasound/dmasound.h index 1cb13fe..1308d8d 100644 --- a/sound/oss/dmasound/dmasound.h +++ b/sound/oss/dmasound/dmasound.h @@ -235,7 +235,7 @@ struct sound_queue { */ int active; wait_queue_head_t action_queue, open_queue, sync_queue; - fmode_t open_mode; + int non_blocking; int busy, syncing, xruns, died; }; diff --git a/sound/oss/dmasound/dmasound_core.c b/sound/oss/dmasound/dmasound_core.c index b8239f3..793b7f4 100644 --- a/sound/oss/dmasound/dmasound_core.c +++ b/sound/oss/dmasound/dmasound_core.c @@ -603,7 +603,7 @@ static ssize_t sq_write(struct file *file, const char __user *src, size_t uLeft, while (uLeft) { while (write_sq.count >= write_sq.max_active) { sq_play(); - if (write_sq.open_mode & O_NONBLOCK) + if (write_sq.non_blocking) return uWritten > 0 ? uWritten : -EAGAIN; SLEEP(write_sq.action_queue); if (signal_pending(current)) @@ -718,7 +718,7 @@ static int sq_open2(struct sound_queue *sq, struct file *file, fmode_t mode, return rc; } - sq->open_mode = file->f_mode; + sq->non_blocking = file->f_flags & O_NONBLOCK; } return rc; } -- 1.5.6.5
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