Re: [PATCH v4 09/15] drm/shmem-helper: Correct doc-comment of drm_gem_shmem_get_sg_table()

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Hi

Am 18.04.22 um 00:37 schrieb Dmitry Osipenko:
drm_gem_shmem_get_sg_table() never returns NULL on error, but a ERR_PTR.
Correct the doc comment which says that it returns NULL on error.

Signed-off-by: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx>


---
  drivers/gpu/drm/drm_gem_shmem_helper.c | 5 +++--
  1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index 8ad0e02991ca..30ee46348a99 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -662,7 +662,7 @@ EXPORT_SYMBOL(drm_gem_shmem_print_info);
   * drm_gem_shmem_get_pages_sgt() instead.
   *
   * Returns:
- * A pointer to the scatter/gather table of pinned pages or NULL on failure.
+ * A pointer to the scatter/gather table of pinned pages or errno on failure.

', or an ERR_PTR()-encoded errno code on failure'

   */
  struct sg_table *drm_gem_shmem_get_sg_table(struct drm_gem_shmem_object *shmem)
  {
@@ -688,7 +688,8 @@ EXPORT_SYMBOL_GPL(drm_gem_shmem_get_sg_table);
   * drm_gem_shmem_get_sg_table() should not be directly called by drivers.
   *
   * Returns:
- * A pointer to the scatter/gather table of pinned pages or errno on failure.
+ * A pointer to the scatter/gather table of pinned pages ERR_PTR()-encoded

', or an' before ERR_PTR

With the improved grammar:

Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>


+ * error code on failure.
   */
  struct sg_table *drm_gem_shmem_get_pages_sgt(struct drm_gem_shmem_object *shmem)
  {

--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev

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