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>
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index 224af53..1cfa8b4 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -481,12 +481,14 @@
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 @@
}
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);