Commit f2f13a68 authored by Axel Lin's avatar Axel Lin Committed by Jonathan Cameron

HID: hid-sensor-hub: Fix sensor_hub_probe error handling

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: default avatarAxel Lin <axel.lin@gmail.com>
Acked-by: default avatarJiri Kosina <jkosina@suse.cz>
Acked-by: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 3f257caf
...@@ -555,8 +555,7 @@ static int sensor_hub_probe(struct hid_device *hdev, ...@@ -555,8 +555,7 @@ static int sensor_hub_probe(struct hid_device *hdev,
sizeof(struct mfd_cell), sizeof(struct mfd_cell),
GFP_KERNEL); GFP_KERNEL);
if (sd->hid_sensor_hub_client_devs == NULL) { if (sd->hid_sensor_hub_client_devs == NULL) {
hid_err(hdev, hid_err(hdev, "Failed to allocate memory for mfd cells\n");
"Failed to allocate memory for mfd cells\n");
ret = -ENOMEM; ret = -ENOMEM;
goto err_close; goto err_close;
} }
...@@ -568,10 +567,9 @@ static int sensor_hub_probe(struct hid_device *hdev, ...@@ -568,10 +567,9 @@ static int sensor_hub_probe(struct hid_device *hdev,
name = kasprintf(GFP_KERNEL, "HID-SENSOR-%x", name = kasprintf(GFP_KERNEL, "HID-SENSOR-%x",
field->physical); field->physical);
if (name == NULL) { if (name == NULL) {
hid_err(hdev, hid_err(hdev, "Failed MFD device name\n");
"Failed MFD device name\n");
ret = -ENOMEM; ret = -ENOMEM;
goto err_free_cells; goto err_free_names;
} }
sd->hid_sensor_hub_client_devs[ sd->hid_sensor_hub_client_devs[
sd->hid_sensor_client_cnt].name = name; sd->hid_sensor_client_cnt].name = name;
...@@ -595,10 +593,8 @@ static int sensor_hub_probe(struct hid_device *hdev, ...@@ -595,10 +593,8 @@ static int sensor_hub_probe(struct hid_device *hdev,
err_free_names: err_free_names:
for (i = 0; i < sd->hid_sensor_client_cnt ; ++i) for (i = 0; i < sd->hid_sensor_client_cnt ; ++i)
kfree(sd->hid_sensor_hub_client_devs[i].name); kfree(sd->hid_sensor_hub_client_devs[i].name);
err_free_cells:
kfree(sd->hid_sensor_hub_client_devs); kfree(sd->hid_sensor_hub_client_devs);
err_close: err_close:
hid_hw_stop(hdev);
hid_hw_close(hdev); hid_hw_close(hdev);
err_stop_hw: err_stop_hw:
hid_hw_stop(hdev); hid_hw_stop(hdev);
...@@ -617,8 +613,8 @@ static void sensor_hub_remove(struct hid_device *hdev) ...@@ -617,8 +613,8 @@ static void sensor_hub_remove(struct hid_device *hdev)
int i; int i;
hid_dbg(hdev, " hardware removed\n"); hid_dbg(hdev, " hardware removed\n");
hid_hw_stop(hdev);
hid_hw_close(hdev); hid_hw_close(hdev);
hid_hw_stop(hdev);
spin_lock_irqsave(&data->lock, flags); spin_lock_irqsave(&data->lock, flags);
if (data->pending.status) if (data->pending.status)
complete(&data->pending.ready); complete(&data->pending.ready);
......
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