From: Christoph Hellwig <hch@lst.de>
Date: Mon, 6 Sep 2021 14:40:00 +0200
Subject: dma-mapping: fix the kerneldoc for dma_map_sg_attrs
Patch-mainline: v5.15-rc2
Git-commit: a61cb6017df0a9be072a35259e6e9ae7aa0ef6b3
References: jsc#SLE-19249

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

Fixes: fffe3cc8c219 ("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>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 kernel/dma/mapping.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/kernel/dma/mapping.c
+++ b/kernel/dma/mapping.c
@@ -206,7 +206,8 @@ static int __dma_map_sg_attrs(struct dev
 /**
  * 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
  *