USB: EHCI: fix divide-by-zero bug

[linux-2.6-omap-h63xx.git] / drivers / usb / host / ehci-sched.c

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 4a0c5a78b2ed74358055e800d5181b1a1e2cb1c7..a081ee65bde6d933f3f2000c67028d461ece27c7 100644 (file)
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -918,7 +918,7 @@ iso_stream_init (
                 */
                stream->usecs = HS_USECS_ISO (maxp);
                bandwidth = stream->usecs * 8;
-               bandwidth /= 1 << (interval - 1);
+               bandwidth /= interval;
 
        } else {
                u32             addr;
@@ -951,7 +951,7 @@ iso_stream_init (
                } else
                        stream->raw_mask = smask_out [hs_transfers - 1];
                bandwidth = stream->usecs + stream->c_usecs;
-               bandwidth /= 1 << (interval + 2);
+               bandwidth /= interval << 3;
 
                /* stream->splits gets created from raw_mask later */
                stream->address = cpu_to_hc32(ehci, addr);