[PATCH] virtio: fix kernel-doc for mapping/free_coherent functions

[Kriish Sharma <kriish.sharma2006@gmail.com>]

Documentation build reported:

  WARNING: ./drivers/virtio/virtio_ring.c:3174 function parameter 'vaddr' not described in 'virtqueue_map_free_coherent'
  WARNING: ./drivers/virtio/virtio_ring.c:3308 expecting prototype for virtqueue_mapping_error(). Prototype was for virtqueue_map_mapping_error() instead

The kernel-doc block for virtqueue_map_free_coherent() omitted the @vaddr parameter, and
the kernel-doc header for virtqueue_map_mapping_error() used the wrong function name
(virtqueue_mapping_error) instead of the actual function name.

This change updates:

  - the function name in the comment to virtqueue_map_mapping_error()
  - adds the missing @vaddr description in the comment for virtqueue_map_free_coherent()

Fixes: b41cb3bcf67f ("virtio: rename dma helpers")
Signed-off-by: Kriish Sharma <kriish.sharma2006@gmail.com>
---
 drivers/virtio/virtio_ring.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 7b6205253b46..ddab68959671 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -3166,6 +3166,7 @@ EXPORT_SYMBOL_GPL(virtqueue_map_alloc_coherent);
  * @vdev: the virtio device we are talking to
  * @map: metadata for performing mapping
  * @size: the size of the buffer
+ * @vaddr: the virtual address that needs to be freed
  * @map_handle: the mapped address that needs to be freed
  *
  */
@@ -3190,7 +3191,7 @@ EXPORT_SYMBOL_GPL(virtqueue_map_free_coherent);
  * @dir: mapping direction
  * @attrs: mapping attributes
  *
- * Returns mapped address. Caller should check that by virtqueue_mapping_error().
+ * Returns mapped address. Caller should check that by virtqueue_map_mapping_error().
  */
 dma_addr_t virtqueue_map_page_attrs(const struct virtqueue *_vq,
 				    struct page *page,
@@ -3249,7 +3250,7 @@ EXPORT_SYMBOL_GPL(virtqueue_unmap_page_attrs);
  * The caller calls this to do dma mapping in advance. The DMA address can be
  * passed to this _vq when it is in pre-mapped mode.
  *
- * return mapped address. Caller should check that by virtqueue_mapping_error().
+ * return mapped address. Caller should check that by virtqueue_map_mapping_error().
  */
 dma_addr_t virtqueue_map_single_attrs(const struct virtqueue *_vq, void *ptr,
 				      size_t size,
@@ -3299,7 +3300,7 @@ void virtqueue_unmap_single_attrs(const struct virtqueue *_vq,
 EXPORT_SYMBOL_GPL(virtqueue_unmap_single_attrs);
 
 /**
- * virtqueue_mapping_error - check dma address
+ * virtqueue_map_mapping_error - check dma address
  * @_vq: the struct virtqueue we're talking about.
  * @addr: DMA address
  *
-- 
2.34.1