gpu: nvgpu: Skip calling undefined prod callbacks

Fix rest of code to not call prod callbacks that are set to NULL.

Bug 1799537

Change-Id: I756bb1f7ef58ba753ac43a2be6f125107be3cf34
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1209133
(cherry picked from commit 5f4d7b42b6101407fde8c4a7dcdd3633eca85ae5)
Reviewed-on: http://git-master/r/1217297
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c b/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c
index 973adc7d..8ac983d9 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c
@@ -104,7 +104,8 @@ static ssize_t blcg_enable_store(struct device *dev,
                 g->ops.clock_gating.blcg_fb_load_gating_prod(g, g->blcg_enabled);
         if (g->ops.clock_gating.blcg_fifo_load_gating_prod)
                 g->ops.clock_gating.blcg_fifo_load_gating_prod(g, g->blcg_enabled);
-        g->ops.clock_gating.blcg_gr_load_gating_prod(g, g->blcg_enabled);
+        if (g->ops.clock_gating.blcg_gr_load_gating_prod)
+                g->ops.clock_gating.blcg_gr_load_gating_prod(g, g->blcg_enabled);
         if (g->ops.clock_gating.blcg_ltc_load_gating_prod)
                 g->ops.clock_gating.blcg_ltc_load_gating_prod(g, g->blcg_enabled);
         if (g->ops.clock_gating.blcg_pmu_load_gating_prod)
@@ -167,10 +168,12 @@ static ssize_t slcg_enable_store(struct device *dev,
                 g->ops.clock_gating.slcg_fb_load_gating_prod(g, g->slcg_enabled);
         if (g->ops.clock_gating.slcg_fifo_load_gating_prod)
                 g->ops.clock_gating.slcg_fifo_load_gating_prod(g, g->slcg_enabled);
-        g->ops.clock_gating.slcg_gr_load_gating_prod(g, g->slcg_enabled);
+        if (g->ops.clock_gating.slcg_gr_load_gating_prod)
+                g->ops.clock_gating.slcg_gr_load_gating_prod(g, g->slcg_enabled);
         if (g->ops.clock_gating.slcg_ltc_load_gating_prod)
                 g->ops.clock_gating.slcg_ltc_load_gating_prod(g, g->slcg_enabled);
-        g->ops.clock_gating.slcg_perf_load_gating_prod(g, g->slcg_enabled);
+        if (g->ops.clock_gating.slcg_perf_load_gating_prod)
+                g->ops.clock_gating.slcg_perf_load_gating_prod(g, g->slcg_enabled);
         if (g->ops.clock_gating.slcg_priring_load_gating_prod)
                 g->ops.clock_gating.slcg_priring_load_gating_prod(g, g->slcg_enabled);
         if (g->ops.clock_gating.slcg_pmu_load_gating_prod)