linux-kernel - [PATCH] HID: emsff: properly handle emsff

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Date:	Tue, 19 Jul 2011 16:14:04 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Ignaz Forster <ignaz.forster@....de>,
	Jiri Kosina <jkosina@...e.cz>, linux-input@...r.kernel.org
Subject: [PATCH] HID: emsff: properly handle emsff_init failure

emsff_init() may fail, let's properly handle the failure.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 drivers/hid/hid-emsff.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/hid/hid-emsff.c b/drivers/hid/hid-emsff.c
index 81877c6..a5dc13f 100644
--- a/drivers/hid/hid-emsff.c
+++ b/drivers/hid/hid-emsff.c
@@ -126,7 +126,12 @@ static int ems_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		goto err;
 	}
 
-	emsff_init(hdev);
+	ret = emsff_init(hdev);
+	if (ret) {
+		dev_err(&hdev->dev, "force feedback init failed\n");
+		hid_hw_stop(hdev);
+		goto err;
+	}
 
 	return 0;
 err:
-- 
1.7.4.1



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