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-rw-r--r--drivers/firewire/fw-transaction.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c
index 47bfe761250..3682e75a09e 100644
--- a/drivers/firewire/fw-transaction.c
+++ b/drivers/firewire/fw-transaction.c
@@ -797,7 +797,7 @@ handle_registers(struct fw_card *card, struct fw_request *request,
unsigned long long offset,
void *payload, size_t length, void *callback_data)
{
- int reg = offset - CSR_REGISTER_BASE;
+ int reg = offset & ~CSR_REGISTER_BASE;
unsigned long long bus_time;
__be32 *data = payload;