[PATCH 1/7] media: cec: no need to check return value of debugfs_create functions

[Greg Kroah-Hartman]

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Cc: linux-media@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/media/cec/core/cec-core.c | 27 ++++++++-------------------
 include/media/cec.h               |  2 --
 2 files changed, 8 insertions(+), 21 deletions(-)

diff --git a/drivers/media/cec/core/cec-core.c b/drivers/media/cec/core/cec-core.c
index c599cd94dd62..562792f545ac 100644
--- a/drivers/media/cec/core/cec-core.c
+++ b/drivers/media/cec/core/cec-core.c
@@ -359,27 +359,16 @@ int cec_register_adapter(struct cec_adapter *adap,
 	if (!top_cec_dir)
 		return 0;
 
-	adap->cec_dir = debugfs_create_dir(dev_name(&adap->devnode.dev), top_cec_dir);
-	if (IS_ERR_OR_NULL(adap->cec_dir)) {
-		pr_warn("cec-%s: Failed to create debugfs dir\n", adap->name);
-		return 0;
-	}
-	adap->status_file = debugfs_create_devm_seqfile(&adap->devnode.dev,
-		"status", adap->cec_dir, cec_adap_status);
-	if (IS_ERR_OR_NULL(adap->status_file)) {
-		pr_warn("cec-%s: Failed to create status file\n", adap->name);
-		debugfs_remove_recursive(adap->cec_dir);
-		adap->cec_dir = NULL;
-		return 0;
-	}
+	adap->cec_dir = debugfs_create_dir(dev_name(&adap->devnode.dev),
+					   top_cec_dir);
+
+	debugfs_create_devm_seqfile(&adap->devnode.dev, "status", adap->cec_dir,
+				    cec_adap_status);
+
 	if (!adap->ops->error_inj_show || !adap->ops->error_inj_parse_line)
 		return 0;
-	adap->error_inj_file = debugfs_create_file("error-inj", 0644,
-						   adap->cec_dir, adap,
-						   &cec_error_inj_fops);
-	if (IS_ERR_OR_NULL(adap->error_inj_file))
-		pr_warn("cec-%s: Failed to create error-inj file\n",
-			adap->name);
+	debugfs_create_file("error-inj", 0644, adap->cec_dir, adap,
+			    &cec_error_inj_fops);
 #endif
 	return 0;
 }
diff --git a/include/media/cec.h b/include/media/cec.h
index c48b5f2e4b50..cd35ae6b7560 100644
--- a/include/media/cec.h
+++ b/include/media/cec.h
@@ -248,8 +248,6 @@ struct cec_adapter {
 #endif
 
 	struct dentry *cec_dir;
-	struct dentry *status_file;
-	struct dentry *error_inj_file;
 
 	u32 sequence;
 
-- 
2.28.0