linux-kernel - [PATCH 10/12] HID: hid-lg4ff: Allow the driver to continue without sysfs interface.

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Date:	Sat, 21 Mar 2015 12:47:40 +0100
From:	Michal Malý <madcatxster@...oid-pointer.net>
To:	jkosina@...e.cz
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	elias.vds@...il.com, simon@...gewell.org,
	Michal Malý <madcatxster@...oid-pointer.net>
Subject: [PATCH 10/12] HID: hid-lg4ff: Allow the driver to continue without sysfs interface.

Instead of aborting the initialization allow the driver to continue in
a degraded mode.

Signed-off-by: Michal Malý <madcatxster@...oid-pointer.net>
---
 drivers/hid/hid-lg4ff.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index ad959e2..5543728 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -1226,19 +1226,14 @@ int lg4ff_init(struct hid_device *hid)
 	/* Create sysfs interface */
 	error = device_create_file(&hid->dev, &dev_attr_range);
 	if (error)
-		goto err_init;
+		hid_warn(hid, "Unable to create sysfs interface for \"range\", errno %d\n", error);
 	if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) {
 		error = device_create_file(&hid->dev, &dev_attr_real_id);
-		if (error) {
-			device_remove_file(&hid->dev, &dev_attr_range);
-			goto err_init;
-		}
+		if (error)
+			hid_warn(hid, "Unable to create sysfs interface for \"real_id\", errno %d\n", error);
 		error = device_create_file(&hid->dev, &dev_attr_alternate_modes);
-		if (error) {
-			device_remove_file(&hid->dev, &dev_attr_real_id);
-			device_remove_file(&hid->dev, &dev_attr_range);
-			goto err_init;
-		}
+		if (error)
+			hid_warn(hid, "Unable to create sysfs interface for \"alternate_modes\", errno %d\n", error);
 	}
 	dbg_hid("sysfs interface created\n");
 
-- 
2.3.3

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