From 9a562cb5bce93f16c68c3e717ca29763d8b93d21 Mon Sep 17 00:00:00 2001 From: "Poddar, Siddarth" Date: Mon, 20 Mar 2017 13:20:33 +0530 Subject: [PATCH] qcacmn: Add NULL check for dma address before calling unmap Add NULL check for dma address of buffer before calling unmap. Change-Id: Id10a767d97fc1328b6d42e804f5a3e8639ff8fbf CRs-Fixed: 2021902 --- qdf/linux/src/qdf_nbuf.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/qdf/linux/src/qdf_nbuf.c b/qdf/linux/src/qdf_nbuf.c index 94aa4fdf7ab5..1cb4572cb15a 100644 --- a/qdf/linux/src/qdf_nbuf.c +++ b/qdf/linux/src/qdf_nbuf.c @@ -366,8 +366,9 @@ void __qdf_nbuf_unmap_single(qdf_device_t osdev, qdf_nbuf_t buf, void __qdf_nbuf_unmap_single(qdf_device_t osdev, qdf_nbuf_t buf, qdf_dma_dir_t dir) { - dma_unmap_single(osdev->dev, QDF_NBUF_CB_PADDR(buf), - skb_end_pointer(buf) - buf->data, dir); + if (QDF_NBUF_CB_PADDR(buf)) + dma_unmap_single(osdev->dev, QDF_NBUF_CB_PADDR(buf), + skb_end_pointer(buf) - buf->data, dir); } #endif EXPORT_SYMBOL(__qdf_nbuf_unmap_single);