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dma-mapping: fix the kerneldoc for dma_map_sg_attrs

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Add the missing description for the nents parameter, and fix a trivial
misalignment.

Fixes: fffe3cc8c2 ("dma-mapping: allow map_sg() ops to return negative error codes")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2021-09-06 14:40:00 +02:00
parent c1dec343d7
commit a61cb6017d
1 changed files with 2 additions and 1 deletions
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3
kernel/dma/mapping.c
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@ -206,7 +206,8 @@ static int __dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
/**
* dma_map_sg_attrs - Map the given buffer for DMA
* @dev: The device for which to perform the DMA operation
* @sg: The sg_table object describing the buffer
* @sg: The sg_table object describing the buffer
* @nents: Number of entries to map
* @dir: DMA direction
* @attrs: Optional DMA attributes for the map operation
*