[PATCH] Possible VIA-Rhine free irq issue

[Panagiotis Issaris]

Hi,

It seems to me that in the VIA Rhine device driver the requested irq might
not be freed in case the alloc_ring() function fails. alloc_ring()
can fail with a ENOMEM return value because of possible
pci_alloc_consistent() failures.

This patch applies to 2.6.11-rc5-bk2.

diff -uprN linux-2.6.11-rc5-bk2/drivers/net/via-rhine.c linux-2.6.11-rc5-bk2-pi/drivers/net/via-rhine.c
--- linux-2.6.11-rc5-bk2/drivers/net/via-rhine.c	2005-02-28 13:44:37.000000000 +0100
+++ linux-2.6.11-rc5-bk2-pi/drivers/net/via-rhine.c	2005-02-28 13:44:31.000000000 +0100
@@ -1198,7 +1198,10 @@ static int rhine_open(struct net_device 
 
 	rc = alloc_ring(dev);
 	if (rc)
+	{
+		free_irq(rp->pdev->irq, dev);
 		return rc;
+	}
 	alloc_rbufs(dev);
 	alloc_tbufs(dev);
 	rhine_chip_reset(dev);


With friendly regards,
Takis
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