[Qemu-ppc] [PATCH for 3.0] sam460ex: Correct use after free error

[BALATON Zoltan]

Commit 51b0d834c changed error handling to report file name in error
message but forgot to move freeing it after usage. Noticed by Coverity.

Fixes: CID 1394217
Reported-by: Paolo Bonzini <address@hidden>
Signed-off-by: BALATON Zoltan <address@hidden>
---
 hw/ppc/sam460ex.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c
index e2b7028..0999efc 100644
--- a/hw/ppc/sam460ex.c
+++ b/hw/ppc/sam460ex.c
@@ -269,11 +269,12 @@ static int sam460ex_load_device_tree(hwaddr addr,
         exit(1);
     }
     fdt = load_device_tree(filename, &fdt_size);
-    g_free(filename);
     if (!fdt) {
         error_report("Couldn't load dtb file `%s'", filename);
+        g_free(filename);
         exit(1);
     }
+    g_free(filename);
 
     /* Manipulate device tree in memory. */
 
-- 
2.7.6