On 01/07/20 16:52, Alexander Bulekov wrote:
> tries to fix a leak detected when building with --enable-sanitizers:
> ./i386-softmmu/qemu-system-i386
> Upon exit:
> ==13576==ERROR: LeakSanitizer: detected memory leaks
>
> Direct leak of 1216 byte(s) in 1 object(s) allocated from:
> #0 0x7f9d2ed5c628 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.5)
> #1 0x7f9d2e963500 in g_malloc (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.)
> #2 0x55fa646d25cc in object_new_with_type /tmp/qemu/qom/object.c:686
> #3 0x55fa63dbaa88 in qdev_new /tmp/qemu/hw/core/qdev.c:140
> #4 0x55fa638a533f in pc_pflash_create /tmp/qemu/hw/i386/pc_sysfw.c:88
> #5 0x55fa638a54c4 in pc_system_flash_create /tmp/qemu/hw/i386/pc_sysfw.c:106
> #6 0x55fa646caa1d in object_init_with_type /tmp/qemu/qom/object.c:369
> #7 0x55fa646d20b5 in object_initialize_with_type /tmp/qemu/qom/object.c:511
> #8 0x55fa646d2606 in object_new_with_type /tmp/qemu/qom/object.c:687
> #9 0x55fa639431e9 in qemu_init /tmp/qemu/softmmu/vl.c:3878
> #10 0x55fa6335c1b8 in main /tmp/qemu/softmmu/main.c:48
> #11 0x7f9d2cf06e0a in __libc_start_main ../csu/libc-start.c:308
> #12 0x55fa6335f8e9 in _start (/tmp/qemu/build/i386-softmmu/qemu-system-i386)
>
> Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
> ---
> v2: move unref to pc_pflash_create, per Paolo's suggestion
>
> hw/i386/pc_sysfw.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/hw/i386/pc_sysfw.c b/hw/i386/pc_sysfw.c
> index ec2a3b3e7e..60a83c53ab 100644
> --- a/hw/i386/pc_sysfw.c
> +++ b/hw/i386/pc_sysfw.c
> @@ -93,6 +93,7 @@ static PFlashCFI01 *pc_pflash_create(PCMachineState *pcms,
> object_property_add_child(OBJECT(pcms), name, OBJECT(dev));
> object_property_add_alias(OBJECT(pcms), alias_prop_name,
> OBJECT(dev), "drive");
> + object_unref(OBJECT(dev));
> return PFLASH_CFI01(dev);
> }
>
>
Queued, with a small comment above.
Paolo