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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-12-13 10:17:10 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-12-13 10:17:10 +0100
commitaf40d16042d674442db8cf5fd654fabcd45fea44 (patch)
tree56f80d083a4a7236a0ee7914ef2baa8222d65494 /drivers/gpu/drm/drm_syncobj.c
parent9a0a930fe2535a76ad70d3f43caeccf0d86a3009 (diff)
parent2585cf9dfaaddf00b069673f27bb3f8530e2039c (diff)
Merge v5.15-rc5 into char-misc-next
We need the fixes in here as well, and also resolve some merge conflicts in: drivers/misc/eeprom/at25.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/drm_syncobj.c')
-rw-r--r--drivers/gpu/drm/drm_syncobj.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
index c9a9d74f338c1..c313a5b4549c4 100644
--- a/drivers/gpu/drm/drm_syncobj.c
+++ b/drivers/gpu/drm/drm_syncobj.c
@@ -404,8 +404,17 @@ int drm_syncobj_find_fence(struct drm_file *file_private,
if (*fence) {
ret = dma_fence_chain_find_seqno(fence, point);
- if (!ret)
+ if (!ret) {
+ /* If the requested seqno is already signaled
+ * drm_syncobj_find_fence may return a NULL
+ * fence. To make sure the recipient gets
+ * signalled, use a new fence instead.
+ */
+ if (!*fence)
+ *fence = dma_fence_get_stub();
+
goto out;
+ }
dma_fence_put(*fence);
} else {
ret = -EINVAL;