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Date: Fri, 18 Jul 2008 09:27:26 -0500
From: Paul Fulghum <paulkf@...rogate.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] synclink_gt fix locking in error path of rx enable
Fix locking in error path of rx_enable() introduced by
synclink_gt-add-rx-dma-buffer-fill-level-control patch.
Signed-off-by: Paul Fulghum <paulkf@...rogate.com>
--- a/drivers/char/synclink_gt.c 2008-07-18 09:14:41.000000000 -0500
+++ b/drivers/char/synclink_gt.c 2008-07-18 09:13:57.000000000 -0500
@@ -2700,8 +2700,10 @@ static int rx_enable(struct slgt_info *i
*/
rbuf_fill_level = ((unsigned int)enable) >> 16;
if (rbuf_fill_level) {
- if ((rbuf_fill_level > DMABUFSIZE) || (rbuf_fill_level % 4))
+ if ((rbuf_fill_level > DMABUFSIZE) || (rbuf_fill_level % 4)) {
+ spin_unlock_irqrestore(&info->lock, flags);
return -EINVAL;
+ }
info->rbuf_fill_level = rbuf_fill_level;
rx_stop(info); /* restart receiver to use new fill level */
}
--
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