diff options
| author | Bing Zhao <bzhao@marvell.com> | 2009-07-08 11:44:14 -0700 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2009-08-22 14:25:34 -0700 |
| commit | 3318b2362bf0528be77123c480249663557dfbfc (patch) | |
| tree | b0d06465c9663d0f3f958c603feade942dd50e56 /drivers/bluetooth | |
| parent | 9374253ffe609f2d70dd5ae280182cb6f08fef08 (diff) | |
| download | lwn-3318b2362bf0528be77123c480249663557dfbfc.tar.gz lwn-3318b2362bf0528be77123c480249663557dfbfc.zip | |
Bluetooth: Fix incorrect alignment in Marvell BT-over-SDIO driver
The driver uses "u32" for alignment check and calculation which
works only on 32-bit system. It will crash the 64-bit system.
Replace "u32" with "unsigned long" to fix this issue.
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/btmrvl_sdio.c | 12 | ||||
| -rw-r--r-- | drivers/bluetooth/btmrvl_sdio.h | 3 |
2 files changed, 9 insertions, 6 deletions
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c index 224af53e0fae..1cfa8b4ace50 100644 --- a/drivers/bluetooth/btmrvl_sdio.c +++ b/drivers/bluetooth/btmrvl_sdio.c @@ -481,12 +481,14 @@ static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv) goto exit; } - if ((u32) skb->data & (BTSDIO_DMA_ALIGN - 1)) { - skb_put(skb, (u32) skb->data & (BTSDIO_DMA_ALIGN - 1)); - skb_pull(skb, (u32) skb->data & (BTSDIO_DMA_ALIGN - 1)); + if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) { + skb_put(skb, (unsigned long) skb->data & + (BTSDIO_DMA_ALIGN - 1)); + skb_pull(skb, (unsigned long) skb->data & + (BTSDIO_DMA_ALIGN - 1)); } - payload = skb->tail; + payload = skb->data; ret = sdio_readsb(card->func, payload, card->ioport, buf_block_len * blksz); @@ -773,7 +775,7 @@ static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv, } buf = payload; - if ((u32) payload & (BTSDIO_DMA_ALIGN - 1)) { + if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1)) { tmpbufsz = ALIGN_SZ(nb, BTSDIO_DMA_ALIGN); tmpbuf = kmalloc(tmpbufsz, GFP_KERNEL); memset(tmpbuf, 0, tmpbufsz); diff --git a/drivers/bluetooth/btmrvl_sdio.h b/drivers/bluetooth/btmrvl_sdio.h index 2dd284e0df14..27329f107e5a 100644 --- a/drivers/bluetooth/btmrvl_sdio.h +++ b/drivers/bluetooth/btmrvl_sdio.h @@ -104,4 +104,5 @@ struct btmrvl_sdio_device { /* Macros for Data Alignment : address */ #define ALIGN_ADDR(p, a) \ - ((((u32)(p)) + (((u32)(a)) - 1)) & ~(((u32)(a)) - 1)) + ((((unsigned long)(p)) + (((unsigned long)(a)) - 1)) & \ + ~(((unsigned long)(a)) - 1)) |