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omap: iovmm: s/sg_dma_len(sg)/sg->length/ 

iovmm is erroneously using sg_dma_len with unmapped (DMA API-wise)
SG entries, and will break if CONFIG_NEED_SG_DMA_LENGTH is enabled.

Fix that by using sg->length instead.

Reported-by: Russell King <linux@arm.linux.org.uk>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
This commit is contained in:
Ohad Ben-Cohen 2011-06-08 09:06:11 +03:00
parent 7e20b6f39a
commit 66cf402bd9
1 changed files with 3 additions and 3 deletions
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6
arch/arm/plat-omap/iovmm.c
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@ -72,7 +72,7 @@ static size_t sgtable_len(const struct sg_table *sgt)
for_each_sg(sgt->sgl, sg, sgt->nents, i) {
size_t bytes;
bytes = sg_dma_len(sg);
bytes = sg->length;
if (!iopgsz_ok(bytes)) {
pr_err("%s: sg[%d] not iommu pagesize(%x)\n",
@ -198,7 +198,7 @@ static void *vmap_sg(const struct sg_table *sgt)
int err;
pa = sg_phys(sg);
bytes = sg_dma_len(sg);
bytes = sg->length;
BUG_ON(bytes != PAGE_SIZE);
@ -476,7 +476,7 @@ static int map_iovm_area(struct iommu *obj, struct iovm_struct *new,
struct iotlb_entry e;
pa = sg_phys(sg);
bytes = sg_dma_len(sg);
bytes = sg->length;
flags &= ~IOVMF_PGSZ_MASK;
pgsz = bytes_to_iopgsz(bytes);