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Re: [Qemu-trivial] [PATCH 01/29] hw/ide/ahci.c: Fix memory leak spotted
From: |
Peter Maydell |
Subject: |
Re: [Qemu-trivial] [PATCH 01/29] hw/ide/ahci.c: Fix memory leak spotted by valgrind |
Date: |
Thu, 28 May 2015 13:16:43 +0100 |
On 28 May 2015 at 13:08, Shannon Zhao <address@hidden> wrote:
> From: Shannon Zhao <address@hidden>
>
> valgrind complains about:
> ==23381== 8 bytes in 1 blocks are definitely lost in loss record 438 of 2,785
> ==23381== at 0x4C2845D: malloc (in
> /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
> ==23381== by 0x35478F: malloc_and_trace (vl.c:2556)
> ==23381== by 0x64C770E: g_malloc (in /usr/lib64/libglib-2.0.so.0.3600.3)
> ==23381== by 0x3ED98B: qemu_extend_irqs (irq.c:55)
> ==23381== by 0x3EDA17: qemu_allocate_irqs (irq.c:64)
> ==23381== by 0x43D767: ahci_init (ahci.c:1356)
> ==23381== by 0x43DAC5: sysbus_ahci_realize (ahci.c:1520)
> ==23381== by 0x3EA4CC: device_set_realized (qdev.c:1058)
> ==23381== by 0x516CD2: property_set_bool (object.c:1514)
> ==23381== by 0x5155CC: object_property_set (object.c:837)
> ==23381== by 0x5178EE: object_property_set_qobject (qom-qobject.c:24)
> ==23381== by 0x51583B: object_property_set_bool (object.c:905)
>
> Signed-off-by: Shannon Zhao <address@hidden>
> Signed-off-by: Shannon Zhao <address@hidden>
> ---
> hw/ide/ahci.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
> index 9e5d862..4702a05 100644
> --- a/hw/ide/ahci.c
> +++ b/hw/ide/ahci.c
> @@ -1367,6 +1367,7 @@ void ahci_init(AHCIState *s, DeviceState *qdev,
> AddressSpace *as, int ports)
> ad->port.dma->ops = &ahci_dma_ops;
> ide_register_restart_cb(&ad->port);
> }
> + g_free(irqs);
> }
Freeing the return value of qemu_allocate_irqs()
directly rather than using qemu_free_irqs() looks
dubious to me.
-- PMM
- [Qemu-trivial] [PATCH 00/29] Fix memory leak relevant to calling qemu_allocate_irqs, Shannon Zhao, 2015/05/28
- [Qemu-trivial] [PATCH 08/29] hw/intc/exynos4210_gic.c: Fix memory leak spotted by valgrind, Shannon Zhao, 2015/05/28
- [Qemu-trivial] [PATCH 17/29] hw/lm32/milkymist.c: Fix memory leak spotted by valgrind, Shannon Zhao, 2015/05/28
- [Qemu-trivial] [PATCH 18/29] hw/m68k/mcf5206.c: Fix memory leak spotted by valgrind, Shannon Zhao, 2015/05/28
- [Qemu-trivial] [PATCH 16/29] hw/lm32/lm32_boards.c: Fix memory leak spotted by valgrind, Shannon Zhao, 2015/05/28
- [Qemu-trivial] [PATCH 15/29] hw/mips/mips_jazz.c: Fix memory leak spotted by valgrind, Shannon Zhao, 2015/05/28
- [Qemu-trivial] [PATCH 12/29] hw/ppc/ppc440_bamboo.c: Fix memory leak spotted by valgrind, Shannon Zhao, 2015/05/28
- [Qemu-trivial] [PATCH 07/29] hw/timer/arm_timer.c: Fix memory leak spotted by valgrind, Shannon Zhao, 2015/05/28
- [Qemu-trivial] [PATCH 13/29] hw/ppc/prep.c: Fix memory leak spotted by valgrind, Shannon Zhao, 2015/05/28