Am 01.11.2017 um 15:06 schrieb Liviu Dudau:
> Mappings need to be unmapped by calling dma_buf_unmap_attachment() and
> not by calling again dma_buf_map_attachment(). Also fix some spelling
> mistakes.
>
> Signed-off-by: Liviu Dudau <[email protected]>
Reviewed-by: Christian König <[email protected]>
> ---
> drivers/dma-buf/dma-buf.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
> index bc1cb284111cb..1792385405f0e 100644
> --- a/drivers/dma-buf/dma-buf.c
> +++ b/drivers/dma-buf/dma-buf.c
> @@ -351,13 +351,13 @@ static inline int is_dma_buf_file(struct file *file)
> *
> * 2. Userspace passes this file-descriptors to all drivers it wants this buffer
> * to share with: First the filedescriptor is converted to a &dma_buf using
> - * dma_buf_get(). The the buffer is attached to the device using
> + * dma_buf_get(). Then the buffer is attached to the device using
> * dma_buf_attach().
> *
> * Up to this stage the exporter is still free to migrate or reallocate the
> * backing storage.
> *
> - * 3. Once the buffer is attached to all devices userspace can inniate DMA
> + * 3. Once the buffer is attached to all devices userspace can initiate DMA
> * access to the shared buffer. In the kernel this is done by calling
> * dma_buf_map_attachment() and dma_buf_unmap_attachment().
> *
> @@ -617,7 +617,7 @@ EXPORT_SYMBOL_GPL(dma_buf_detach);
> * Returns sg_table containing the scatterlist to be returned; returns ERR_PTR
> * on error. May return -EINTR if it is interrupted by a signal.
> *
> - * A mapping must be unmapped again using dma_buf_map_attachment(). Note that
> + * A mapping must be unmapped by using dma_buf_unmap_attachment(). Note that
> * the underlying backing storage is pinned for as long as a mapping exists,
> * therefore users/importers should not hold onto a mapping for undue amounts of
> * time.
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