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From: Axel Lin <axel.lin@gmail.com>
To: Jiri Kosina <jkosina@suse.cz>
Cc: srinivas pandruvada <srinivas.pandruvada@intel.com>,
	Jonathan Cameron <jic23@kernel.org>,
	linux-input@vger.kernel.org
Subject: [PATCH 2/3] HID: hid-sensor-hub: Fix sensor_hub_probe error handling
Date: Fri, 14 Sep 2012 06:05:12 +0800	[thread overview]
Message-ID: <1347573912.8974.4.camel@phoenix> (raw)
In-Reply-To: <1347573801.8974.2.camel@phoenix>

Fix below issues in sensor_hub_probe error handling:
1. In the case of goto err_close, hid_hw_stop(hdev) is called twice. Fix it.
2. If fails to allocate MFD device name, we also need to free all
   sucessfully allocated names in previous iterations.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
 drivers/hid/hid-sensor-hub.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 1faacf2..f9d6209 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -580,7 +580,7 @@ static int sensor_hub_probe(struct hid_device *hdev,
 				hid_err(hdev,
 					"Failed MFD device name\n");
 					ret = -ENOMEM;
-					goto err_free_cells;
+					goto err_free_names;
 			}
 			sd->hid_sensor_hub_client_devs[
 				sd->hid_sensor_client_cnt].name = name;
@@ -604,10 +604,8 @@ static int sensor_hub_probe(struct hid_device *hdev,
 err_free_names:
 	for (i = 0; i < sd->hid_sensor_client_cnt ; ++i)
 		kfree(sd->hid_sensor_hub_client_devs[i].name);
-err_free_cells:
 	kfree(sd->hid_sensor_hub_client_devs);
 err_close:
-	hid_hw_stop(hdev);
 	hid_hw_close(hdev);
 err_stop_hw:
 	hid_hw_stop(hdev);
-- 
1.7.9.5




  reply	other threads:[~2012-09-13 22:05 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-13 22:03 [PATCH 1/3] HID: hid-sensor-hub: Remove setting hdev->claimed before calling hid_hw_start() Axel Lin
2012-09-13 22:05 ` Axel Lin [this message]
2012-09-13 22:06 ` [PATCH 3/3] HID: hid-sensor-hub: Call hid_hw_close() before hid_hw_stop() Axel Lin
2012-09-13 22:31   ` Pandruvada, Srinivas
2012-09-17 10:58     ` Jiri Kosina
2012-09-17 15:20       ` Pandruvada, Srinivas

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