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authorLiviu Dudau <Liviu.Dudau@arm.com>2017-11-01 17:06:30 +0300
committerGustavo Padovan <gustavo.padovan@collabora.com>2017-11-02 16:10:45 +0300
commitc138782d895d52aa3831aa8c468b33d68fa5c954 (patch)
tree2f9f425d8e2c04ee69c51f01405756bc8504085b /drivers/dma-buf
parent21be91549c6b6792a37cfe9c0409d0635df220f4 (diff)
downloadlinux-c138782d895d52aa3831aa8c468b33d68fa5c954.tar.xz
dma-buf: Cleanup comments on dma_buf_map_attachment()
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@arm.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171101140630.2884-1-Liviu.Dudau@arm.com
Diffstat (limited to 'drivers/dma-buf')
-rw-r--r--drivers/dma-buf/dma-buf.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index bc1cb284111c..1792385405f0 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.