[MTHCA] bugfix in CMD interface: wait for GO bit before issuing command in polling...

git-svn-id: svn://openib.tc.cornell.edu/gen1@1775 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86

diff --git a/trunk/hw/mthca/kernel/mthca_cmd.c b/trunk/hw/mthca/kernel/mthca_cmd.c
index 0c2ba3c1ad470440abaca03f353159a8eb9b5fc5..e3483f7cefeab3e4ff26ed0bf154023f95a3a929 100644 (file)
--- a/trunk/hw/mthca/kernel/mthca_cmd.c
+++ b/trunk/hw/mthca/kernel/mthca_cmd.c
@@ -259,10 +259,16 @@ static int mthca_cmd_post(struct mthca_dev *dev,
 
        down(&dev->cmd.hcr_mutex);
 
-       if (event && wait_go_bit(dev,GO_BIT_TIMEOUT)) {
-               err = -EAGAIN;
-               goto out;
-       }
+       if (event)
+               if (wait_go_bit(dev,GO_BIT_TIMEOUT)) {
+                       err = -EAGAIN;
+                       goto out;
+               }
+       else
+               if (go_bit(dev)) {
+                       err = -EAGAIN;
+                       goto out;
+               }
 
        /*
         * We use writel (instead of something like memcpy_toio)