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[media] omap3isp: queue: Use sg_alloc_table_from_pages() 

Replace the custom implementation with a call to the scatterlist helper
function.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Laurent Pinchart 2014-03-08 10:09:29 -03:00 committed by Mauro Carvalho Chehab
parent 49ac3695d0
commit 9a8c7fffa2
1 changed files with 2 additions and 14 deletions
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16
drivers/media/platform/omap3isp/ispqueue.c
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@ -233,12 +233,10 @@ static void isp_video_buffer_cleanup(struct isp_video_buffer *buf)
*/
static int isp_video_buffer_prepare_user(struct isp_video_buffer *buf)
{
struct scatterlist *sg;
unsigned int offset;
unsigned long data;
unsigned int first;
unsigned int last;
unsigned int i;
int ret;
data = buf->vbuf.m.userptr;
@ -267,21 +265,11 @@ static int isp_video_buffer_prepare_user(struct isp_video_buffer *buf)
if (ret < 0)
return ret;
ret = sg_alloc_table(&buf->sgt, buf->npages, GFP_KERNEL);
ret = sg_alloc_table_from_pages(&buf->sgt, buf->pages, buf->npages,
offset, buf->vbuf.length, GFP_KERNEL);
if (ret < 0)
return ret;
for (sg = buf->sgt.sgl, i = 0; i < buf->npages; ++i) {
if (PageHighMem(buf->pages[i])) {
sg_free_table(&buf->sgt);
return -EINVAL;
}
sg_set_page(sg, buf->pages[i], PAGE_SIZE - offset, offset);
sg = sg_next(sg);
offset = 0;
}
return 0;
}