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authorJiri Slaby <jirislaby@gmail.com>2007-07-15 23:40:20 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 09:05:44 -0700
commit6defec139a0fb0fb36c41a441f8417360da81ea1 (patch)
tree6da7c2b84a9d6978850e33f918e3ec6e3cac3003
parente0955e14f72dd1f561dc8b7c4434a253914ddfd4 (diff)
Char: n_r3964, use wait_event_interruptible
Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/char/n_r3964.c14
1 files changed, 2 insertions, 12 deletions
diff --git a/drivers/char/n_r3964.c b/drivers/char/n_r3964.c
index 14557a4822c0..6b918b80f73e 100644
--- a/drivers/char/n_r3964.c
+++ b/drivers/char/n_r3964.c
@@ -1071,8 +1071,6 @@ static ssize_t r3964_read(struct tty_struct *tty, struct file *file,
struct r3964_client_info *pClient;
struct r3964_message *pMsg;
struct r3964_client_message theMsg;
- DECLARE_WAITQUEUE(wait, current);
-
int count;
TRACE_L("read()");
@@ -1086,16 +1084,8 @@ static ssize_t r3964_read(struct tty_struct *tty, struct file *file,
return -EAGAIN;
}
/* block until there is a message: */
- add_wait_queue(&pInfo->read_wait, &wait);
-repeat:
- __set_current_state(TASK_INTERRUPTIBLE);
- pMsg = remove_msg(pInfo, pClient);
- if (!pMsg && !signal_pending(current)) {
- schedule();
- goto repeat;
- }
- __set_current_state(TASK_RUNNING);
- remove_wait_queue(&pInfo->read_wait, &wait);
+ wait_event_interruptible(pInfo->read_wait,
+ (pMsg = remove_msg(pInfo, pClient)));
}
/* If we still haven't got a message, we must have been signalled */