From 80ceb057135ad77f513277f3bcd04b885501877a Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@gmail.com>
Date: Mon, 20 Jun 2011 13:27:44 +0200
Subject: [PATCH] bsg: fix bsg_poll() to return POLLOUT properly

POLLOUT should be returned only if bd->queued_cmds < bd->max_queue
so that bsg_alloc_command() can proceed.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 block/bsg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/bsg.c b/block/bsg.c
index 0c8b64a1648..c4f49e25575 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -878,7 +878,7 @@ static unsigned int bsg_poll(struct file *file, poll_table *wait)
 	spin_lock_irq(&bd->lock);
 	if (!list_empty(&bd->done_list))
 		mask |= POLLIN | POLLRDNORM;
-	if (bd->queued_cmds >= bd->max_queue)
+	if (bd->queued_cmds < bd->max_queue)
 		mask |= POLLOUT;
 	spin_unlock_irq(&bd->lock);