[Qemu-devel] [PATCH] hw/arm/realview.c: Fix memory leak in realview_init()

[Nikita Belov <zodiac@ispras.ru>]

Variable 'ram_lo' is allocated unconditionally, but used only in some cases.
When it is unused pointer will be lost at function exit, resulting in a
memory leak. Free memory in this case.

Valgrind output:
==16879== 240 bytes in 1 blocks are definitely lost in loss record 6,033 of 7,018
==16879==    at 0x4C2AB80: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==16879==    by 0x33D2CE: malloc_and_trace (vl.c:2804)
==16879==    by 0x509E610: g_malloc (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4000.0)
==16879==    by 0x288836: realview_init (realview.c:55)
==16879==    by 0x28988C: realview_pb_a8_init (realview.c:375)
==16879==    by 0x341426: main (vl.c:4413)

Signed-off-by: Nikita Belov <zodiac@ispras.ru>
---
 hw/arm/realview.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/arm/realview.c b/hw/arm/realview.c
index af65aa4..673a540 100644
--- a/hw/arm/realview.c
+++ b/hw/arm/realview.c
@@ -141,6 +141,8 @@ static void realview_init(MachineState *machine,
                                &error_abort);
         vmstate_register_ram_global(ram_lo);
         memory_region_add_subregion(sysmem, 0x20000000, ram_lo);
+    } else {
+        g_free(ram_lo);
     }

     memory_region_init_ram(ram_hi, NULL, "realview.highmem", ram_size,
--
1.9.0.msysgit.0