From: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Date: Thu, 23 Mar 2023 22:58:55 +0000 (-0700)
Subject: drm/i915/perf: Fail modprobe if i915_perf_init fails on OOM
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=772a5803922a097eaf94cf865c6f4a81416aedb8;p=linux.git

drm/i915/perf: Fail modprobe if i915_perf_init fails on OOM

i915_perf_init can fail due to OOM. Fail driver init if i915_perf_init
fails.

v2: (Jani)
- Reorder patch in the series

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230323225901.3743681-6-umesh.nerlige.ramappa@intel.com
---

diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index 19983b77118d6..20b88cf226e78 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -610,7 +610,9 @@ 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 cf4ea5e389a5d..584e3e7b9e77c 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -4902,7 +4902,7 @@ 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;
 
@@ -5018,12 +5018,16 @@ void i915_perf_init(struct drm_i915_private *i915)
 		perf->i915 = i915;
 
 		ret = oa_init_engine_groups(perf);
-		if (ret)
+		if (ret) {
 			drm_err(&i915->drm,
 				"OA initialization failed %d\n", ret);
+			return ret;
+		}
 
 		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 f96e09a4af042..253637651d5ee 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);