diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/firewire/fw-ohci.c | 14 | ||||
| -rw-r--r-- | drivers/firewire/fw-ohci.h | 1 |
2 files changed, 11 insertions, 4 deletions
diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index 92ff38f82d9..1f6f15f0dce 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -1019,20 +1019,26 @@ static void bus_reset_tasklet(unsigned long data) ohci->node_id = reg & (OHCI1394_NodeID_busNumber | OHCI1394_NodeID_nodeNumber); + reg = reg_read(ohci, OHCI1394_SelfIDCount); + if (reg & OHCI1394_SelfIDCount_selfIDError) { + fw_notify("inconsistent self IDs\n"); + return; + } /* * The count in the SelfIDCount register is the number of * bytes in the self ID receive buffer. Since we also receive * the inverted quadlets and a header quadlet, we shift one * bit extra to get the actual number of self IDs. */ - - self_id_count = (reg_read(ohci, OHCI1394_SelfIDCount) >> 3) & 0x3ff; + self_id_count = (reg >> 3) & 0x3ff; generation = (cond_le32_to_cpu(ohci->self_id_cpu[0]) >> 16) & 0xff; rmb(); for (i = 1, j = 0; j < self_id_count; i += 2, j++) { - if (ohci->self_id_cpu[i] != ~ohci->self_id_cpu[i + 1]) - fw_error("inconsistent self IDs\n"); + if (ohci->self_id_cpu[i] != ~ohci->self_id_cpu[i + 1]) { + fw_notify("inconsistent self IDs\n"); + return; + } ohci->self_id_buffer[j] = cond_le32_to_cpu(ohci->self_id_cpu[i]); } diff --git a/drivers/firewire/fw-ohci.h b/drivers/firewire/fw-ohci.h index dec4f04e6b2..5754c6e9d59 100644 --- a/drivers/firewire/fw-ohci.h +++ b/drivers/firewire/fw-ohci.h @@ -30,6 +30,7 @@ #define OHCI1394_HCControl_softReset 0x00010000 #define OHCI1394_SelfIDBuffer 0x064 #define OHCI1394_SelfIDCount 0x068 +#define OHCI1394_SelfIDCount_selfIDError 0x80000000 #define OHCI1394_IRMultiChanMaskHiSet 0x070 #define OHCI1394_IRMultiChanMaskHiClear 0x074 #define OHCI1394_IRMultiChanMaskLoSet 0x078 |