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| author | Liviu Dudau <Liviu.Dudau@arm.com> | 2017-11-01 17:06:30 +0300 |
|---|---|---|
| committer | Gustavo Padovan <gustavo.padovan@collabora.com> | 2017-11-02 16:10:45 +0300 |
| commit | c138782d895d52aa3831aa8c468b33d68fa5c954 (patch) | |
| tree | 2f9f425d8e2c04ee69c51f01405756bc8504085b /drivers/dma-buf | |
| parent | 21be91549c6b6792a37cfe9c0409d0635df220f4 (diff) | |
| download | linux-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.c | 6 |
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. |