gpu: nvgpu: WAR: unbind_channel_verify_status ret val

Do not return error if channel to be removed has
NEXT set. This is a WAR until proper fix is
identified and implemented.

Bug 200327095

Change-Id: Ia77f3b834e8e577ac2dad8281f1dd562079adcef
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1577133
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
index 6544a652..32915ee1 100644
--- a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
@@ -1913,9 +1913,10 @@ int gk20a_fifo_tsg_unbind_channel_verify_status(struct channel_gk20a *ch)
         struct gk20a *g = ch->g;
 
         if (gk20a_fifo_channel_status_is_next(g, ch->chid)) {
-                nvgpu_err(g, "Channel %d to be removed from TSG %d has NEXT set!",
+                nvgpu_log(g, gpu_dbg_info,
+                        "Channel %d to be removed from TSG %d has NEXT set!",
                         ch->chid, ch->tsgid);
-                return -EINVAL;
+                return 0;
         }
 
         if (g->ops.fifo.tsg_verify_status_ctx_reload)