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Re: [Qemu-devel] [PATCH] hw/vfio/platform: replace g_malloc0_n by g_mall
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH] hw/vfio/platform: replace g_malloc0_n by g_malloc0 |
Date: |
Thu, 11 Jun 2015 13:11:14 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) |
Eric Auger <address@hidden> writes:
> g_malloc0_n() is introduced since glib-2.24 while QEMU currently
> requires glib-2.22. This may cause a link error on some distributions.
>
> Signed-off-by: Eric Auger <address@hidden>
> ---
> hw/vfio/platform.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c
> index 35266a8..c0acc8b 100644
> --- a/hw/vfio/platform.c
> +++ b/hw/vfio/platform.c
> @@ -346,8 +346,7 @@ static int vfio_populate_device(VFIODevice *vbasedev)
> return ret;
> }
>
> - vdev->regions = g_malloc0_n(vbasedev->num_regions,
> - sizeof(VFIORegion *));
> + vdev->regions = g_malloc0(vbasedev->num_regions * sizeof(VFIORegion *));
>
> for (i = 0; i < vbasedev->num_regions; i++) {
> struct vfio_region_info reg_info = { .argsz = sizeof(reg_info) };
Please use g_new0(VFIORegion, vbasedev->num_regions) for extra
compile-time checking and integer overflow protection. See commits
58889fe net: Use g_new() & friends where that makes obvious sense
3c55fe2 scsi: Use g_new() & friends where that makes obvious sense
ab3ad07 x86: Use g_new() & friends where that makes obvious sense
3ba235a block: Use g_new0() for a bit of extra type checking
e1cf558 util: Use g_new() & friends where that makes obvious sense
02c4f26 block: Use g_new() & friends to avoid multiplying sizes
5839e53 block: Use g_new() & friends where that makes obvious sense