1 files changed, 11 insertions, 12 deletions

diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index b23322523ef5..347ece6b583c 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -64,10 +64,10 @@ static int nodemgr_bus_read(struct csr1212_csr *csr, u64 addr, u16 length,
         struct nodemgr_csr_info *ci = (struct nodemgr_csr_info*)__ci;
         int i, ret = 0;
 
-        for (i = 0; i < 3; i++) {
+        for (i = 1; ; i++) {
                 ret = hpsb_read(ci->host, ci->nodeid, ci->generation, addr,
                                 buffer, length);
-                if (!ret)
+                if (!ret || i == 3)
                         break;
 
                 if (msleep_interruptible(334))
@@ -1438,9 +1438,13 @@ static int nodemgr_do_irm_duties(struct hpsb_host *host, int cycles)
         if (host->busmgr_id == 0xffff && host->node_count > 1)
         {
                 u16 root_node = host->node_count - 1;
-                struct node_entry *ne = find_entry_by_nodeid(host, root_node | LOCAL_BUS);
 
-                if (ne && ne->busopt.cmc)
+                /* get cycle master capability flag from root node */
+                if (host->is_cycmst ||
+                    (!hpsb_read(host, LOCAL_BUS | root_node, get_hpsb_generation(host),
+                                (CSR_REGISTER_BASE + CSR_CONFIG_ROM + 2 * sizeof(quadlet_t)),
+                                &bc, sizeof(quadlet_t)) &&
+                     be32_to_cpu(bc) & 1 << CSR_CMC_SHIFT))
                         hpsb_send_phy_config(host, root_node, -1);
                 else {
                         HPSB_DEBUG("The root node is not cycle master capable; "
@@ -1557,24 +1561,19 @@ static int nodemgr_host_thread(void *__hi)
                         }
                 }
 
-                if (!nodemgr_check_irm_capability(host, reset_cycles)) {
+                if (!nodemgr_check_irm_capability(host, reset_cycles) ||
+                    !nodemgr_do_irm_duties(host, reset_cycles)) {
                         reset_cycles++;
                         up(&nodemgr_serialize);
                         continue;
                 }
+                reset_cycles = 0;
 
                 /* Scan our nodes to get the bus options and create node
                  * entries. This does not do the sysfs stuff, since that
                  * would trigger hotplug callbacks and such, which is a
                  * bad idea at this point. */
                 nodemgr_node_scan(hi, generation);
-                if (!nodemgr_do_irm_duties(host, reset_cycles)) {
-                        reset_cycles++;
-                        up(&nodemgr_serialize);
-                        continue;
-                }
-
-                reset_cycles = 0;
 
                 /* This actually does the full probe, with sysfs
                  * registration. */