diff options
| author | Michael Buesch <mbuesch@freenet.de> | 2006-03-14 16:05:26 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2006-03-27 11:19:38 -0500 |
| commit | 49f29efa7f44a79b64c7882c68e171898d0495a0 (patch) | |
| tree | c09f7a2be4a1eaa4a9d7ab2c095633c9003dc905 /drivers/net/wireless/bcm43xx | |
| parent | e9357c056c5e62516f0044e60591d41f00ca7cfa (diff) | |
[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>
Diffstat (limited to 'drivers/net/wireless/bcm43xx')
| -rw-r--r-- | drivers/net/wireless/bcm43xx/bcm43xx_dma.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/bcm43xx/bcm43xx_pio.c | 6 |
2 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_dma.c b/drivers/net/wireless/bcm43xx/bcm43xx_dma.c index 7ed368a587f..9c64438b767 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_dma.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_dma.c @@ -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; diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_pio.c b/drivers/net/wireless/bcm43xx/bcm43xx_pio.c index 7bddae910de..5b6f0a84d01 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_pio.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_pio.c @@ -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; |