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authorDan Carpenter <dan.carpenter@oracle.com>2018-09-14 09:56:15 +0300
committerGerd Hoffmann <kraxel@redhat.com>2018-09-14 11:44:59 +0200
commit6f19eb21a2ef9a2da938106ccc98e296ee02f4d3 (patch)
tree8aa2645e1b5dcd517b54afefb77bc23fd60144ae /drivers/dma-buf
parent351c4dbe4fae44b747dd97114a5983ec23a49f24 (diff)
downloadlinux-6f19eb21a2ef9a2da938106ccc98e296ee02f4d3.tar.bz2
udmabuf: fix error code in map_udmabuf()
We accidentally forgot to set "ret" on this error path so it means we return NULL instead of an error pointer. The caller checks for NULL and changes it to an error pointer so it doesn't cause an issue at run time. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: http://patchwork.freedesktop.org/patch/msgid/20180914065615.GA12043@mwanda Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'drivers/dma-buf')
-rw-r--r--drivers/dma-buf/udmabuf.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index 9edabce0b8ab..5b44ef226904 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -61,8 +61,10 @@ static struct sg_table *map_udmabuf(struct dma_buf_attachment *at,
GFP_KERNEL);
if (ret < 0)
goto err;
- if (!dma_map_sg(at->dev, sg->sgl, sg->nents, direction))
+ if (!dma_map_sg(at->dev, sg->sgl, sg->nents, direction)) {
+ ret = -EINVAL;
goto err;
+ }
return sg;
err: