From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jonathan Cameron Subject: Re: [PATCH 2/2] HID: hid-sensor-hub: Fix sensor_hub_probe error handling Date: Sat, 22 Sep 2012 10:35:51 +0100 Message-ID: <505D8677.40902@kernel.org> References: <1348068650-1723-1-git-send-email-srinivas.pandruvada@linux.intel.com> <1348068650-1723-2-git-send-email-srinivas.pandruvada@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from saturn.retrosnub.co.uk ([178.18.118.26]:52983 "EHLO saturn.retrosnub.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753426Ab2IVJft (ORCPT ); Sat, 22 Sep 2012 05:35:49 -0400 In-Reply-To: <1348068650-1723-2-git-send-email-srinivas.pandruvada@linux.intel.com> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Srinivas Pandruvada Cc: jkosina@suse.cz, linux-input@vger.kernel.org, Axel Lin On 09/19/2012 04:30 PM, Srinivas Pandruvada wrote: > From: Axel Lin <[mailto:axel.lin@gmail.com]> > > Fix below issues: > 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 > successfully allocated names in previous iterations. > 3. In sensor_hub_remove(), Call hid_hw_close() before hid_hw_stop(). > 4. Adjust unnecessary change lines for hid_err. > > Signed-off-by: Axel Lin > Acked-by: Jiri Kosina > Acked-by: Srinivas Pandruvada added to togreg branch of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git > --- > drivers/hid/hid-sensor-hub.c | 12 ++++-------- > 1 file changed, 4 insertions(+), 8 deletions(-) > > diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c > index ffa91cf..1314380 100644 > --- a/drivers/hid/hid-sensor-hub.c > +++ b/drivers/hid/hid-sensor-hub.c > @@ -555,8 +555,7 @@ static int sensor_hub_probe(struct hid_device *hdev, > sizeof(struct mfd_cell), > GFP_KERNEL); > if (sd->hid_sensor_hub_client_devs == NULL) { > - hid_err(hdev, > - "Failed to allocate memory for mfd cells\n"); > + hid_err(hdev, "Failed to allocate memory for mfd cells\n"); > ret = -ENOMEM; > goto err_close; > } > @@ -568,10 +567,9 @@ static int sensor_hub_probe(struct hid_device *hdev, > name = kasprintf(GFP_KERNEL, "HID-SENSOR-%x", > field->physical); > if (name == NULL) { > - hid_err(hdev, > - "Failed MFD device name\n"); > + 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; > @@ -595,10 +593,8 @@ 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); > @@ -617,8 +613,8 @@ static void sensor_hub_remove(struct hid_device *hdev) > int i; > > hid_dbg(hdev, " hardware removed\n"); > - hid_hw_stop(hdev); > hid_hw_close(hdev); > + hid_hw_stop(hdev); > spin_lock_irqsave(&data->lock, flags); > if (data->pending.status) > complete(&data->pending.ready); >