Merge branch 'upstream-merge'HEADnextmaster

* upstream-merge: (575 commits)
  ssi: Add slave autoconnect helper
  MAINTAINERS: Added maintainerships for SSI
  xilinx_zynq: Added SPI controllers + flashes
  xilinx_spips: Xilinx Zynq SPI cntrlr device model
  petalogix-ml605: added SPI controller with n25q128
  xilinx_spi: Initial impl. of Xilinx SPI controller
  m25p80: Initial implementation of SPI flash device
  hw: Added generic FIFO API.
  stellaris: Removed SSI mux
  qdev: allow multiple qdev_init_gpio_in() calls
  ssi: Added create_slave_no_init()
  ssi: Implemented CS behaviour
  ssi: Support for multiple attached devices
  qemu-barrier: Fix compilation on i386 hosts
  target-sparc: Optimize conditionals using SUBCC
  target-sparc: Fall through from not-taken trap
  target-sparc: Cleanup "global" temporary allocation
  target-sparc: Use movcond for FMOV*R
  target-sparc: Use movcond in mulscc
  target-sparc: Move taddcctv and tsubcctv out of line
  ...

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

1 files changed, 7 insertions, 7 deletions

diff --git a/aio.c b/aio.c
index 0a9eb10c7..c738a4e15 100644
--- a/aio.c
+++ b/aio.c
@@ -119,7 +119,7 @@ bool qemu_aio_wait(void)
         return true;
     }
 
-    walking_handlers = 1;
+    walking_handlers++;
 
     FD_ZERO(&rdfds);
     FD_ZERO(&wrfds);
@@ -147,7 +147,7 @@ bool qemu_aio_wait(void)
         }
     }
 
-    walking_handlers = 0;
+    walking_handlers--;
 
     /* No AIO operations?  Get us out of here */
     if (!busy) {
@@ -159,14 +159,14 @@ bool qemu_aio_wait(void)
 
     /* if we have any readable fds, dispatch event */
     if (ret > 0) {
-        walking_handlers = 1;
-
         /* we have to walk very carefully in case
          * qemu_aio_set_fd_handler is called while we're walking */
         node = QLIST_FIRST(&aio_handlers);
         while (node) {
             AioHandler *tmp;
 
+            walking_handlers++;
+
             if (!node->deleted &&
                 FD_ISSET(node->fd, &rdfds) &&
                 node->io_read) {
@@ -181,13 +181,13 @@ bool qemu_aio_wait(void)
             tmp = node;
             node = QLIST_NEXT(node, node);
 
-            if (tmp->deleted) {
+            walking_handlers--;
+
+            if (!walking_handlers && tmp->deleted) {
                 QLIST_REMOVE(tmp, node);
                 g_free(tmp);
             }
         }
-
-        walking_handlers = 0;
     }
 
     return true;