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[PATCH] bcm43xx: Fix crash on ifdown, by being careful in pio/dma freeing. 

This bug was caused by the packing of the bcm43xx_dma and bcm43xx_pio
structures into a union.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Michael Buesch 2006-03-14 16:05:26 +01:00 committed by John W. Linville
parent e9357c056c
commit 49f29efa7f
2 changed files with 10 additions and 2 deletions
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6
drivers/net/wireless/bcm43xx/bcm43xx_dma.c
View File

@ -531,7 +531,11 @@ static void bcm43xx_destroy_dmaring(struct bcm43xx_dmaring *ring)
void bcm43xx_dma_free(struct bcm43xx_private *bcm)
{
struct bcm43xx_dma *dma = bcm43xx_current_dma(bcm);
struct bcm43xx_dma *dma;
if (bcm43xx_using_pio(bcm))
return;
dma = bcm43xx_current_dma(bcm);
bcm43xx_destroy_dmaring(dma->rx_ring1);
dma->rx_ring1 = NULL;

6
drivers/net/wireless/bcm43xx/bcm43xx_pio.c
View File

@ -377,7 +377,11 @@ static void bcm43xx_destroy_pioqueue(struct bcm43xx_pioqueue *queue)
void bcm43xx_pio_free(struct bcm43xx_private *bcm)
{
struct bcm43xx_pio *pio = bcm43xx_current_pio(bcm);
struct bcm43xx_pio *pio;
if (!bcm43xx_using_pio(bcm))
return;
pio = bcm43xx_current_pio(bcm);
bcm43xx_destroy_pioqueue(pio->queue3);
pio->queue3 = NULL;