gpu: nvgpu: vgpu: fix build errors on qnx

- Declare global functions before reaching the implementation.
- avoid using current (current process).
- assign ch->pid/tgid before using them.

Jira VFND-4870

Change-Id: I688a1b89ef4d5dcf046929eab11d7e523caba0a5
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1687142
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Nirav Patel <nipatel@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
index a68968fe..f50c37a7 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
@@ -645,6 +645,9 @@ struct channel_gk20a *gk20a_open_new_channel(struct gk20a *g,
         /* Channel privilege level */
         ch->is_privileged_channel = is_privileged_channel;
 
+        ch->pid = nvgpu_current_tid(g);
+        ch->tgid = nvgpu_current_pid(g);  /* process granularity for FECS traces */
+
         if (g->ops.fifo.alloc_inst(g, ch)) {
                 ch->g = NULL;
                 free_channel(f, ch);
@@ -656,9 +659,6 @@ struct channel_gk20a *gk20a_open_new_channel(struct gk20a *g,
         /* now the channel is in a limbo out of the free list but not marked as
          * alive and used (i.e. get-able) yet */
 
-        ch->pid = nvgpu_current_tid(g);
-        ch->tgid = nvgpu_current_pid(g);  /* process granularity for FECS traces */
-
         /* By default, channel is regular (non-TSG) channel */
         ch->tsgid = NVGPU_INVALID_TSG_ID;