[media] omap3isp: stat: Remove impossible WARN_ON

The WARN_ON statements in the buffer allocation functions try to catch
conditions where buffers would have already been allocated. As the
buffers are explicitly freed right before being allocated this can't
happen.
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>

drivers/media/platform/omap3isp/ispstat.c

@@ -400,7 +400,6 @@ static int isp_stat_bufs_alloc_iommu(struct ispstat *stat, unsigned int size)
 		struct ispstat_buffer *buf = &stat->buf[i];
 		struct iovm_struct *iovm;
 
-		WARN_ON(buf->dma_addr);
 		buf->iommu_addr = omap_iommu_vmalloc(isp->domain, isp->dev, 0,
 							size, IOMMU_FLAG);
 		if (IS_ERR((void *)buf->iommu_addr)) {
@@ -441,7 +440,6 @@ static int isp_stat_bufs_alloc_dma(struct ispstat *stat, unsigned int size)
 	for (i = 0; i < STAT_MAX_BUFS; i++) {
 		struct ispstat_buffer *buf = &stat->buf[i];
 
-		WARN_ON(buf->iommu_addr);
 		buf->virt_addr = dma_alloc_coherent(stat->isp->dev, size,
 					&buf->dma_addr, GFP_KERNEL | GFP_DMA);