netdev - [PATCH 1/1] niu: panic on reset

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Message-id: <48C07564.3060306@Sun.COM>
Date:	Thu, 04 Sep 2008 16:55:16 -0700
From:	Santwona.Behera@....COM
To:	netdev@...r.kernel.org, davem@...emloft.net
Cc:	Matheos Worku <Matheos.Worku@....COM>, agospoda@...hat.com,
	Santwona Behera <Santwona.Behera@....COM>
Subject: [PATCH 1/1] niu: panic on reset

The reset_task function in the niu driver does not reset the hardware 
fully. The buffer addresses and pointers are not being reset/updated in 
the hardware and that leads to panic on reset.

Signed-off-by: santwona.behera@....com <santwona.behera@....com>
---
 drivers/net/niu.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index e4765b7..422d7e5 100644
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -6006,11 +6006,27 @@ static void niu_reset_task(struct work_struct *work)

        niu_stop_hw(np);

+       spin_unlock_irqrestore(&np->lock, flags);
+
+       niu_free_channels(np);
+
+       err = niu_alloc_channels(np);
+       if (err) {
+               dev_err(np->device, PFX "%s:Failed to alloc niu channels\n",
+                       np->dev->name);
+               return;
+       }
+
+       spin_lock_irqsave(&np->lock, flags);
+
        err = niu_init_hw(np);
        if (!err) {
                np->timer.expires = jiffies + HZ;
                add_timer(&np->timer);
                niu_netif_start(np);
+       } else {
+               dev_err(np->device, PFX "%s:Failed to init hw\n",
+                       np->dev->name);
        }

        spin_unlock_irqrestore(&np->lock, flags);
--
1.5.2
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