From: Gustavo Padovan <gustavo.pado...@collabora.co.uk>

Inform the users how many fences are in the fence_info field.

Signed-off-by: Gustavo Padovan <gustavo.padovan at collabora.co.uk>
---
 drivers/staging/android/sync.c      | 2 ++
 drivers/staging/android/uapi/sync.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c
index 03b1214..ba7d461 100644
--- a/drivers/staging/android/sync.c
+++ b/drivers/staging/android/sync.c
@@ -525,6 +525,8 @@ static long sync_file_ioctl_fence_info(struct sync_file 
*sync_file,
        if (info->status >= 0)
                info->status = !info->status;

+       info->num_fences = sync_file->num_fences;
+
        len = sizeof(struct sync_file_info) - sizeof(__u64);

        for (i = 0; i < sync_file->num_fences; ++i) {
diff --git a/drivers/staging/android/uapi/sync.h 
b/drivers/staging/android/uapi/sync.h
index 8e2ed32..01a10b7 100644
--- a/drivers/staging/android/uapi/sync.h
+++ b/drivers/staging/android/uapi/sync.h
@@ -47,12 +47,14 @@ struct fence_info {
  *             userspace including pt_info.
  * @name:      name of fence
  * @status:    status of fence. 1: signaled 0:active <0:error
+ * @num_fences number of fences in the sync_file
  * @fence_info:        a fence_info struct for every fence in the sync_file
  */
 struct sync_file_info {
        __u32   len;
        char    name[32];
        __s32   status;
+       __u32   num_fences;

        __u64   fence_info;
 };
-- 
2.5.0

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