[PATCH libdrm] freedreno: zero is a valid fd number, treat it as such

[Emil Velikov]

Abeit quite unlikely to get hit by this bug here, let just fix it.

Cc: freedreno at lists.freedesktop.org
Cc: Rob Clark <robdclark at gmail.com>
Signed-off-by: Emil Velikov <emil.l.velikov at gmail.com>
---
 freedreno/freedreno_bo.c | 6 +++---
 freedreno/kgsl/kgsl_bo.c | 1 +
 freedreno/msm/msm_bo.c   | 1 +
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/freedreno/freedreno_bo.c b/freedreno/freedreno_bo.c
index 517a2f8..ffaef4c 100644
--- a/freedreno/freedreno_bo.c
+++ b/freedreno/freedreno_bo.c
@@ -285,9 +285,9 @@ void fd_bo_del(struct fd_bo *bo)
        if (!atomic_dec_and_test(&bo->refcnt))
                return;

-       if (bo->fd) {
+       if (bo->fd >= 0) {
                close(bo->fd);
-               bo->fd = 0;
+               bo->fd = -1;
        }

        pthread_mutex_lock(&table_lock);
@@ -372,7 +372,7 @@ uint32_t fd_bo_handle(struct fd_bo *bo)

 int fd_bo_dmabuf(struct fd_bo *bo)
 {
-       if (!bo->fd) {
+       if (bo->fd >= 0) {
                struct drm_prime_handle req = {
                                .handle = bo->handle,
                                .flags = DRM_CLOEXEC,
diff --git a/freedreno/kgsl/kgsl_bo.c b/freedreno/kgsl/kgsl_bo.c
index 15c3ff5..3407c76 100644
--- a/freedreno/kgsl/kgsl_bo.c
+++ b/freedreno/kgsl/kgsl_bo.c
@@ -168,6 +168,7 @@ drm_private struct fd_bo * kgsl_bo_from_handle(struct 
fd_device *dev,

        bo = &kgsl_bo->base;
        bo->funcs = &funcs;
+       bo->fd = -1;

        for (i = 0; i < ARRAY_SIZE(kgsl_bo->list); i++)
                list_inithead(&kgsl_bo->list[i]);
diff --git a/freedreno/msm/msm_bo.c b/freedreno/msm/msm_bo.c
index fbd82df..3f5b6d0 100644
--- a/freedreno/msm/msm_bo.c
+++ b/freedreno/msm/msm_bo.c
@@ -137,6 +137,7 @@ drm_private struct fd_bo * msm_bo_from_handle(struct 
fd_device *dev,

        bo = &msm_bo->base;
        bo->funcs = &funcs;
+       bo->fd = -1;

        for (i = 0; i < ARRAY_SIZE(msm_bo->list); i++)
                list_inithead(&msm_bo->list[i]);
-- 
2.4.5