[PATCH 4/9] drm/i915/perf: Fail modprobe if i915_perf_init fails

[Umesh Nerlige Ramappa <umesh.nerlige.ramappa@xxxxxxxxx>]

Check for return value from i915_perf_init and fail driver init if perf
init fails.

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@xxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_driver.c | 4 +++-
 drivers/gpu/drm/i915/i915_perf.c   | 4 +++-
 drivers/gpu/drm/i915/i915_perf.h   | 2 +-
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index 0c0ae3eabb4b..998ca41c9713 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -477,7 +477,9 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
 	if (ret)
 		return ret;
 
-	i915_perf_init(dev_priv);
+	ret = i915_perf_init(dev_priv);
+	if (ret)
+		return ret;
 
 	ret = i915_ggtt_probe_hw(dev_priv);
 	if (ret)
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 0b2097ad000e..e134523576f8 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -4845,7 +4845,7 @@ static void i915_perf_init_info(struct drm_i915_private *i915)
  * Note: i915-perf initialization is split into an 'init' and 'register'
  * phase with the i915_perf_register() exposing state to userspace.
  */
-void i915_perf_init(struct drm_i915_private *i915)
+int i915_perf_init(struct drm_i915_private *i915)
 {
 	struct i915_perf *perf = &i915->perf;
 
@@ -4962,6 +4962,8 @@ void i915_perf_init(struct drm_i915_private *i915)
 
 		oa_init_supported_formats(perf);
 	}
+
+	return 0;
 }
 
 static int destroy_config(int id, void *p, void *data)
diff --git a/drivers/gpu/drm/i915/i915_perf.h b/drivers/gpu/drm/i915/i915_perf.h
index f96e09a4af04..253637651d5e 100644
--- a/drivers/gpu/drm/i915/i915_perf.h
+++ b/drivers/gpu/drm/i915/i915_perf.h
@@ -18,7 +18,7 @@ struct i915_oa_config;
 struct intel_context;
 struct intel_engine_cs;
 
-void i915_perf_init(struct drm_i915_private *i915);
+int i915_perf_init(struct drm_i915_private *i915);
 void i915_perf_fini(struct drm_i915_private *i915);
 void i915_perf_register(struct drm_i915_private *i915);
 void i915_perf_unregister(struct drm_i915_private *i915);
-- 
2.36.1