From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Wed, 26 Oct 2016 20:59:59 +0000 (-0200)
Subject: dma-buf/sw_sync: put fence reference from the fence creation
X-Git-Tag: v4.14-rc1~1925^2~36^2~17
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4592bfcd177fe78cf9adc59f2dcddd1fa1f71079;p=platform%2Fkernel%2Flinux-rpi.git

dma-buf/sw_sync: put fence reference from the fence creation

Once sw_sync_ioctl_create_fence() returns we no longer have the
*pt pointer to the fence base object thus we need to put the reference
we have from the fence creation to keep a correct reference accounting.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1477515599-7685-1-git-send-email-gustavo@padovan.org
---

diff --git a/drivers/dma-buf/sw_sync.c b/drivers/dma-buf/sw_sync.c
index 7aa4d7b..69c5ff3 100644
--- a/drivers/dma-buf/sw_sync.c
+++ b/drivers/dma-buf/sw_sync.c
@@ -316,8 +316,8 @@ static long sw_sync_ioctl_create_fence(struct sync_timeline *obj,
 	}
 
 	sync_file = sync_file_create(&pt->base);
+	dma_fence_put(&pt->base);
 	if (!sync_file) {
-		dma_fence_put(&pt->base);
 		err = -ENOMEM;
 		goto err;
 	}