Messages in this thread | | | Date | Thu, 15 Dec 2011 09:10:56 +0100 | From | Joerg Roedel <> | Subject | Re: [PATCH] iommu: Initialize domain->handler in iommu_domain_alloc() |
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On Tue, Dec 13, 2011 at 04:14:26PM +0900, KyongHo Cho wrote: > Since it is not guaranteed that an iommu driver initializes in its > domain_init() function, it must be initialized with NULL to prevent > calling a function in an arbitrary location when iommu fault occurred. > > Signed-off-by: KyongHo Cho <pullip.cho@samsung.com> > --- > drivers/iommu/iommu.c | 1 + > 1 files changed, 1 insertions(+), 0 deletions(-) > > diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c > index 7cc3c65..1afb896 100644 > --- a/drivers/iommu/iommu.c > +++ b/drivers/iommu/iommu.c > @@ -148,6 +148,7 @@ struct iommu_domain *iommu_domain_alloc(struct bus_type *bus) > return NULL; > > domain->ops = bus->iommu_ops; > + domain->handler = NULL;
Good catch. But it is better to change the kmalloc in the function to kzalloc. This will implicitly initialize all future members correctly.
Thanks,
Joerg
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