linux-kernel - [PATCH] fix the poll method of bsg file operations in Block layer SCSI generic driver

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Message-ID: <AANLkTi=butKgG8VktAu0V12aBKTetOJwiGkcTLG_RZWB@mail.gmail.com>
Date:	Wed, 10 Nov 2010 21:58:52 +0800
From:	Hillf Danton <dhillf@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	linux-scsi@...r.kernel.org, "Zou, Yi" <yi.zou@...el.com>,
	Joe Eykholt <jeykholt@...co.com>
Subject: [PATCH] fix the poll method of bsg file operations in Block layer
 SCSI generic driver

Though it looks like a typo, the check for POLLOUT is computed incorrectly.

Signed-off-by: Hillf Danton <dhillf@...il.com>
---

--- a/block/bsg.c	2010-09-13 07:07:38.000000000 +0800
+++ b/block/bsg.c	2010-11-10 21:40:30.000000000 +0800
@@ -874,6 +874,8 @@ static unsigned int bsg_poll(struct file
 	if (!list_empty(&bd->done_list))
 		mask |= POLLIN | POLLRDNORM;
 	if (bd->queued_cmds >= bd->max_queue)
+		;
+	else
 		mask |= POLLOUT;
 	spin_unlock_irq(&bd->lock);
--
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