Re: [PATCH] dma-buf: Cleanup comments on dma_buf_map_attachment()

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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 <liviu.dudau@xxxxxxx>

Reviewed-by: Christian König <christian.koenig@xxxxxxx>

---
  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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