[Qemu-devel] [PATCH] ui: fix format specifier in vnc_client_io_error() to avoid break in build.

[Rami Rosen <rami.rosen@intel.com>]

When building qemu after setting _VNC_DEBUG to 1 (see ui/vnc.h),
we get the following error and the build breaks:
...
ui/vnc.c: In function ‘vnc_client_io_error’:
ui/vnc.c:1262:13: error: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘ssize_t’ [-Werror=format=]
             VNC_DEBUG("Closing down client sock: ret %d (%s)\n",
             ^
cc1: all warnings being treated as errors
make: *** [ui/vnc.o] Error 1
...

This patch solves this issue by fixing the print format specifier
in vnc_client_io_error() to be %ld, which corresponds to the type
of the "ret" variable.

Signed-off-by: Rami Rosen <rami.rosen@intel.com>
---
 ui/vnc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ui/vnc.c b/ui/vnc.c
index 2c28a59..4b0a89c 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -1259,7 +1259,7 @@ ssize_t vnc_client_io_error(VncState *vs, ssize_t ret, Error **errp)
         if (ret == 0) {
             VNC_DEBUG("Closing down client sock: EOF\n");
         } else if (ret != QIO_CHANNEL_ERR_BLOCK) {
-            VNC_DEBUG("Closing down client sock: ret %d (%s)\n",
+            VNC_DEBUG("Closing down client sock: ret %ld (%s)\n",
                       ret, errp ? error_get_pretty(*errp) : "Unknown");
         }
 
-- 
1.9.1