X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fmedia%2Fplatform%2Fs5p-mfc%2Fs5p_mfc_opr.c;fp=kernel%2Fdrivers%2Fmedia%2Fplatform%2Fs5p-mfc%2Fs5p_mfc_opr.c;h=1e7250260a9aff35021fd5fe2a9a28f5bff45f7b;hb=e09b41010ba33a20a87472ee821fa407a5b8da36;hp=00a1d8b2a8c236195259885bc0aaaca7a549fd37;hpb=f93b97fd65072de626c074dbe099a1fff05ce060;p=kvmfornfv.git

diff --git a/kernel/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c b/kernel/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c
index 00a1d8b2a..1e7250260 100644
--- a/kernel/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c
+++ b/kernel/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c
@@ -37,10 +37,9 @@ void s5p_mfc_init_regs(struct s5p_mfc_dev *dev)
 		dev->mfc_regs = s5p_mfc_init_regs_v6_plus(dev);
 }
 
-int s5p_mfc_alloc_priv_buf(struct device *dev,
+int s5p_mfc_alloc_priv_buf(struct device *dev, dma_addr_t base,
 					struct s5p_mfc_priv_buf *b)
 {
-
 	mfc_debug(3, "Allocating priv: %zu\n", b->size);
 
 	b->virt = dma_alloc_coherent(dev, b->size, &b->dma, GFP_KERNEL);
@@ -50,6 +49,14 @@ int s5p_mfc_alloc_priv_buf(struct device *dev,
 		return -ENOMEM;
 	}
 
+	if (b->dma < base) {
+		mfc_err("Invaling memory configuration!\n");
+		mfc_err("Allocated buffer (%pad) is lower than memory base address (%pad)\n",
+			&b->dma, &base);
+		dma_free_coherent(dev, b->size, b->virt, b->dma);
+		return -ENOMEM;
+	}
+
 	mfc_debug(3, "Allocated addr %p %pad\n", b->virt, &b->dma);
 	return 0;
 }