3 files changed, 20 insertions, 6 deletions

diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c
index 110e731f5574..1c0b504a42f3 100644
--- a/drivers/firewire/core-iso.c
+++ b/drivers/firewire/core-iso.c
@@ -196,7 +196,7 @@ static int manage_bandwidth(struct fw_card *card, int irm_id, int generation,
                 switch (fw_run_transaction(card, TCODE_LOCK_COMPARE_SWAP,
                                 irm_id, generation, SCODE_100,
                                 CSR_REGISTER_BASE + CSR_BANDWIDTH_AVAILABLE,
-                                data, sizeof(data))) {
+                                data, 8)) {
                 case RCODE_GENERATION:
                         /* A generation change frees all bandwidth. */
                         return allocate ? -EAGAIN : bandwidth;
@@ -233,7 +233,7 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation,
                 data[1] = old ^ c;
                 switch (fw_run_transaction(card, TCODE_LOCK_COMPARE_SWAP,
                                            irm_id, generation, SCODE_100,
-                                           offset, data, sizeof(data))) {
+                                           offset, data, 8)) {
                 case RCODE_GENERATION:
                         /* A generation change frees all channels. */
                         return allocate ? -EAGAIN : i;
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index ecddd11b797a..76b321bb73f9 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -34,6 +34,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/pci.h>
+#include <linux/pci_ids.h>
 #include <linux/spinlock.h>
 #include <linux/string.h>
 
@@ -2372,6 +2373,9 @@ static void ohci_pmac_off(struct pci_dev *dev)
 #define ohci_pmac_off(dev)
 #endif /* CONFIG_PPC_PMAC */
 
+#define PCI_VENDOR_ID_AGERE             PCI_VENDOR_ID_ATT
+#define PCI_DEVICE_ID_AGERE_FW643       0x5901
+
 static int __devinit pci_probe(struct pci_dev *dev,
                                const struct pci_device_id *ent)
 {
@@ -2422,6 +2426,16 @@ static int __devinit pci_probe(struct pci_dev *dev,
         version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff;
         ohci->use_dualbuffer = version >= OHCI_VERSION_1_1;
 
+        /* dual-buffer mode is broken if more than one IR context is active */
+        if (dev->vendor == PCI_VENDOR_ID_AGERE &&
+            dev->device == PCI_DEVICE_ID_AGERE_FW643)
+                ohci->use_dualbuffer = false;
+
+        /* dual-buffer mode is broken */
+        if (dev->vendor == PCI_VENDOR_ID_RICOH &&
+            dev->device == PCI_DEVICE_ID_RICOH_R5C832)
+                ohci->use_dualbuffer = false;
+
 /* x86-32 currently doesn't use highmem for dma_alloc_coherent */
 #if !defined(CONFIG_X86_32)
         /* dual-buffer mode is broken with descriptor addresses above 2G */
diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index 8d51568ee143..e5df822a8130 100644
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -456,12 +456,12 @@ static void sbp2_status_write(struct fw_card *card, struct fw_request *request,
         }
         spin_unlock_irqrestore(&card->lock, flags);
 
-        if (&orb->link != &lu->orb_list)
+        if (&orb->link != &lu->orb_list) {
                 orb->callback(orb, &status);
-        else
+                kref_put(&orb->kref, free_orb);
+        } else {
                 fw_error("status write for unknown orb\n");
-
-        kref_put(&orb->kref, free_orb);
+        }
 
         fw_send_response(card, request, RCODE_COMPLETE);
 }