dma-buf/fence: revert "don't wait when specified timeout is zero" (v2)
authorAlex Deucher <alexdeucher@gmail.com>
Mon, 7 Nov 2016 21:16:14 +0000 (16:16 -0500)
committerSumit Semwal <sumit.semwal@linaro.org>
Tue, 8 Nov 2016 19:15:33 +0000 (00:45 +0530)
commit698c0f7ff21674ec08a4c6e99dd6da62fe5a344d
treee406e8bba438bc4716815d77bcabcbf7c92ff566
parentbcc004b629d22ae202988e4c5424564e0b4f1217
dma-buf/fence: revert "don't wait when specified timeout is zero" (v2)

Reverts commit 847b19a39e4c
("dma-buf/fence: don't wait when specified timeout is zero")

When we don't call the wait function software signaling might never be
activated. This can cause infinite polling loops with unreliable interrupt
driven hardware.

v2: rebase on drm-next

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
  [sumits: reword commit msg for checkpatch warnings]
Link: http://patchwork.freedesktop.org/patch/msgid/1478553376-18575-2-git-send-email-alexander.deucher@amd.com
drivers/dma-buf/dma-fence.c