| Message ID | 20230104095702.2591122-1-yangyingliang@huawei.com |
|---|---|
| State | New |
| Headers | show |
| Series | iommu/exynos: fix error handling in exynos_iommu_init() | expand |
On Wed, 4 Jan 2023 at 03:38, Yang Yingliang <yangyingliang@huawei.com> wrote: > > If platform_driver_register() fails, it don't need unregister and call > kmem_cache_free() to free the memory allocated before calling register. > > Fixes: bbc4d205d93f ("iommu/exynos: Fix driver initialization sequence") > Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> > --- Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org> > drivers/iommu/exynos-iommu.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c > index b0cde2211987..c1d579c24740 100644 > --- a/drivers/iommu/exynos-iommu.c > +++ b/drivers/iommu/exynos-iommu.c > @@ -1446,7 +1446,7 @@ static int __init exynos_iommu_init(void) > > return 0; > err_reg_driver: > - platform_driver_unregister(&exynos_sysmmu_driver); > + kmem_cache_free(lv2table_kmem_cache, zero_lv2_table); > err_zero_lv2: > kmem_cache_destroy(lv2table_kmem_cache); > return ret; > -- > 2.25.1 >
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index b0cde2211987..c1d579c24740 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -1446,7 +1446,7 @@ static int __init exynos_iommu_init(void) return 0; err_reg_driver: - platform_driver_unregister(&exynos_sysmmu_driver); + kmem_cache_free(lv2table_kmem_cache, zero_lv2_table); err_zero_lv2: kmem_cache_destroy(lv2table_kmem_cache); return ret;
If platform_driver_register() fails, it don't need unregister and call kmem_cache_free() to free the memory allocated before calling register. Fixes: bbc4d205d93f ("iommu/exynos: Fix driver initialization sequence") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- drivers/iommu/exynos-iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)