Changeset b137d9e in mainline

Timestamp:

2014-01-25T21:03:17Z (10 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

3ee8dcd5

Parents:

4090f66

Message:

ehci: Fix qh queue corruption on removal

the list is maintained via horizntal pointer, not next.

File:

• uspace/drv/bus/usb/ehci/endpoint_list.c (modified) (1 diff)

uspace/drv/bus/usb/ehci/endpoint_list.c

@@ -162 +162 @@
         }
         assert(qh_next(prev_qh) == addr_to_phys(ep->qh));
-        prev_qh->next = ep->qh->next;
+        prev_qh->horizontal = ep->qh->horizontal;
         /* Make sure ED is updated */
         write_barrier();
 
-        usb_log_debug("HCD EP(%p) removed (%s) from %s, next %x.\n",
-            ep, qpos, instance->name, ep->qh->next);
+        usb_log_debug("HCD EP(%p) removed (%s) from %s, horizontal %x.\n",
+            ep, qpos, instance->name, ep->qh->horizontal);
 
         /* Remove from the endpoint list */