Merge tag 'v4.8' into patchwork

[cascardo/linux.git] / drivers / media / v4l2-core / videobuf2-dma-contig.c

diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c
index 59fa204..fb6a177 100644 (file)
--- a/drivers/media/v4l2-core/videobuf2-dma-contig.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c
@@ -141,6 +141,9 @@ static void *vb2_dc_alloc(struct device *dev, unsigned long attrs,
 {
        struct vb2_dc_buf *buf;
 
+       if (WARN_ON(!dev))
+               return ERR_PTR(-EINVAL);
+
        buf = kzalloc(sizeof *buf, GFP_KERNEL);
        if (!buf)
                return ERR_PTR(-ENOMEM);
@@ -493,6 +496,9 @@ static void *vb2_dc_get_userptr(struct device *dev, unsigned long vaddr,
                return ERR_PTR(-EINVAL);
        }
 
+       if (WARN_ON(!dev))
+               return ERR_PTR(-EINVAL);
+
        buf = kzalloc(sizeof *buf, GFP_KERNEL);
        if (!buf)
                return ERR_PTR(-ENOMEM);
@@ -673,6 +679,9 @@ static void *vb2_dc_attach_dmabuf(struct device *dev, struct dma_buf *dbuf,
        if (dbuf->size < size)
                return ERR_PTR(-EFAULT);
 
+       if (WARN_ON(!dev))
+               return ERR_PTR(-EINVAL);
+
        buf = kzalloc(sizeof(*buf), GFP_KERNEL);
        if (!buf)
                return ERR_PTR(-ENOMEM);