firewire: fw-ohci: log posted write errors

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
index c16fcb96f272ebe0d17d573ebaf9e337dbb61387..a333748255269659abfbee6c314e28f93d5e5af7 100644 (file)
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -18,6 +18,7 @@
  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
+#include <linux/compiler.h>
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/gfp.h>
@@ -1049,6 +1050,9 @@ static irqreturn_t irq_handler(int irq, void *data)
                iso_event &= ~(1 << i);
        }
 
+       if (unlikely(event & OHCI1394_postedWriteErr))
+               fw_error("PCI posted write error\n");
+
        if (event & OHCI1394_cycle64Seconds) {
                cycle_time = reg_read(ohci, OHCI1394_IsochronousCycleTimer);
                if ((cycle_time & 0x80000000) == 0)
@@ -1122,8 +1126,8 @@ static int ohci_enable(struct fw_card *card, u32 *config_rom, size_t length)
                  OHCI1394_RQPkt | OHCI1394_RSPkt |
                  OHCI1394_reqTxComplete | OHCI1394_respTxComplete |
                  OHCI1394_isochRx | OHCI1394_isochTx |
-                 OHCI1394_masterIntEnable |
-                 OHCI1394_cycle64Seconds);
+                 OHCI1394_postedWriteErr | OHCI1394_cycle64Seconds |
+                 OHCI1394_masterIntEnable);
 
        /* Activate link_on bit and contender bit in our self ID packets.*/
        if (ohci_update_phy_reg(card, 4, 0,