| Message ID | 1440751036-6585-2-git-send-email-m.szyprowski@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 67ae0f2ed983..25ecc6afec4c 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -1424,6 +1424,8 @@ static int arm_iommu_mmap_attrs(struct device *dev, struct vm_area_struct *vma, if (off >= nr_pages || (usize >> PAGE_SHIFT) > nr_pages - off) return -ENXIO; + pages += off; + do { int ret = vm_insert_page(vma, uaddr, *pages++); if (ret) {
IOMMU-based dma_mmap() implementation lacked proper support for offset parameter used in mmap call (it always assumed that mapping starts from offset zero). This patch adds support for offset parameter to IOMMU-based implementation. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> CC: stable@vger.kernel.org # v3.6+ --- arch/arm/mm/dma-mapping.c | 2 ++ 1 file changed, 2 insertions(+)