1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index 76b321bb73f9..5d524254499e 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -1279,8 +1279,8 @@ static void bus_reset_tasklet(unsigned long data)
          * the inverted quadlets and a header quadlet, we shift one
          * bit extra to get the actual number of self IDs.
          */
-        self_id_count = (reg >> 3) & 0x3ff;
-        if (self_id_count == 0) {
+        self_id_count = (reg >> 3) & 0xff;
+        if (self_id_count == 0 || self_id_count > 252) {
                 fw_notify("inconsistent self IDs\n");
                 return;
         }