firewire: fix async reception on big endian machines

descriptor.data_address is little endian

Tested-by: Olaf Hering <olh@suse.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
index b72a5c1f9e69..96c8ac5b86cc 100644
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -373,8 +373,8 @@ static void ar_context_tasklet(unsigned long data)
 
                 offset = offsetof(struct ar_buffer, data);
                 dma_unmap_single(ohci->card.device,
-                                 ab->descriptor.data_address - offset,
-                                 PAGE_SIZE, DMA_BIDIRECTIONAL);
+                        le32_to_cpu(ab->descriptor.data_address) - offset,
+                        PAGE_SIZE, DMA_BIDIRECTIONAL);
 
                 buffer = ab;
                 ab = ab->next;
@@ -427,7 +427,7 @@ static void ar_context_run(struct ar_context *ctx)
         size_t offset;
 
         offset = offsetof(struct ar_buffer, data);
-        ab_bus = ab->descriptor.data_address - offset;
+        ab_bus = le32_to_cpu(ab->descriptor.data_address) - offset;
 
         reg_write(ctx->ohci, COMMAND_PTR(ctx->regs), ab_bus | 1);
         reg_write(ctx->ohci, CONTROL_SET(ctx->regs), CONTEXT_RUN);