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path: root/drivers/firewire/fw-ohci.c
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Diffstat (limited to 'drivers/firewire/fw-ohci.c')
-rw-r--r--drivers/firewire/fw-ohci.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
index 996d61f0d460..ca6d51efd8bb 100644
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -401,7 +401,8 @@ static void ar_context_tasklet(unsigned long data)
401 401
402 if (d->res_count == 0) { 402 if (d->res_count == 0) {
403 size_t size, rest, offset; 403 size_t size, rest, offset;
404 dma_addr_t buffer_bus; 404 dma_addr_t start_bus;
405 void *start;
405 406
406 /* 407 /*
407 * This descriptor is finished and we may have a 408 * This descriptor is finished and we may have a
@@ -410,9 +411,9 @@ static void ar_context_tasklet(unsigned long data)
410 */ 411 */
411 412
412 offset = offsetof(struct ar_buffer, data); 413 offset = offsetof(struct ar_buffer, data);
413 buffer_bus = le32_to_cpu(ab->descriptor.data_address) - offset; 414 start = buffer = ab;
415 start_bus = le32_to_cpu(ab->descriptor.data_address) - offset;
414 416
415 buffer = ab;
416 ab = ab->next; 417 ab = ab->next;
417 d = &ab->descriptor; 418 d = &ab->descriptor;
418 size = buffer + PAGE_SIZE - ctx->pointer; 419 size = buffer + PAGE_SIZE - ctx->pointer;
@@ -427,7 +428,7 @@ static void ar_context_tasklet(unsigned long data)
427 buffer = handle_ar_packet(ctx, buffer); 428 buffer = handle_ar_packet(ctx, buffer);
428 429
429 dma_free_coherent(ohci->card.device, PAGE_SIZE, 430 dma_free_coherent(ohci->card.device, PAGE_SIZE,
430 buffer, buffer_bus); 431 start, start_bus);
431 ar_context_add_page(ctx); 432 ar_context_add_page(ctx);
432 } else { 433 } else {
433 buffer = ctx->pointer; 434 buffer = ctx->pointer;