From: Ville Syrjälä <[email protected]>
Signed-off-by: Ville Syrjälä <[email protected]>
---
lib/ioctl_wrappers.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c
index 80e1ec6..eb745bc 100644
--- a/lib/ioctl_wrappers.c
+++ b/lib/ioctl_wrappers.c
@@ -456,7 +456,7 @@ void gem_execbuf(int fd, struct drm_i915_gem_execbuffer2
*execbuf)
* This functions wraps up procedure to establish a memory mapping through the
* GTT.
*
- * Returns: A pointer to the created memory mapping.
+ * Returns: A pointer to the created memory mapping, NULL on failure.
*/
void *gem_mmap__gtt(int fd, uint32_t handle, uint64_t size, unsigned prot)
{
@@ -535,7 +535,7 @@ bool gem_mmap__has_wc(int fd)
* bypassing the GTT system agent (i.e. there is no automatic tiling of
* the mmapping through the fence registers).
*
- * Returns: A pointer to the created memory mapping.
+ * Returns: A pointer to the created memory mapping, NULL on failure.
*/
void *gem_mmap__wc(int fd, uint32_t handle, uint64_t offset, uint64_t size,
unsigned prot)
{
@@ -569,7 +569,7 @@ void *gem_mmap__wc(int fd, uint32_t handle, uint64_t
offset, uint64_t size, unsi
* This functions wraps up procedure to establish a memory mapping through
* direct cpu access, bypassing the gpu completely.
*
- * Returns: A pointer to the created memory mapping.
+ * Returns: A pointer to the created memory mapping, NULL on failure.
*/
void *gem_mmap__cpu(int fd, uint32_t handle, uint64_t offset, uint64_t size,
unsigned prot)
{
--
2.4.9
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