Signed-off-by: Szymon Janc <szymon@xxxxxxxxxxx>
---
drivers/staging/quickstart/quickstart.c | 22 ++++++++++++++--------
1 files changed, 14 insertions(+), 8 deletions(-)
diff --git a/drivers/staging/quickstart/quickstart.c b/drivers/staging/quickstart/quickstart.c
index de98e18..97e62e9 100644
--- a/drivers/staging/quickstart/quickstart.c
+++ b/drivers/staging/quickstart/quickstart.c
@@ -262,29 +262,29 @@ static int quickstart_acpi_config(struct quickstart_acpi *quickstart, char *bid)
static int quickstart_acpi_add(struct acpi_device *device)
{
- int ret = 0;
- acpi_status status = AE_OK;
- struct quickstart_acpi *quickstart = NULL;
+ int ret;
+ acpi_status status;
+ struct quickstart_acpi *quickstart;
if (!device)
return -EINVAL;
- quickstart = kzalloc(sizeof(struct quickstart_acpi), GFP_KERNEL);
+ quickstart = kzalloc(sizeof(*quickstart), GFP_KERNEL);
if (!quickstart)
return -ENOMEM;
quickstart->device = device;
+
strcpy(acpi_device_name(device), QUICKSTART_ACPI_DEVICE_NAME);
strcpy(acpi_device_class(device), QUICKSTART_ACPI_CLASS);
device->driver_data = quickstart;
/* Add button to list and initialize some stuff */
ret = quickstart_acpi_config(quickstart, acpi_device_bid(device));
- if (ret)
+ if (ret < 0)
goto fail_config;
- status = acpi_install_notify_handler(device->handle,
- ACPI_ALL_NOTIFY,
+ status = acpi_install_notify_handler(device->handle, ACPI_ALL_NOTIFY,
quickstart_acpi_notify,
quickstart);
if (ACPI_FAILURE(status)) {
@@ -293,10 +293,16 @@ static int quickstart_acpi_add(struct acpi_device *device)
goto fail_installnotify;
}
- quickstart_acpi_ghid(quickstart);
+ ret = quickstart_acpi_ghid(quickstart);
+ if (ret < 0)
+ goto fail_ghid;
return 0;
+fail_ghid:
+ acpi_remove_notify_handler(device->handle, ACPI_ALL_NOTIFY,
+ quickstart_acpi_notify);
+
fail_installnotify:
quickstart_btnlst_del(quickstart->btn);
--
1.7.8.3
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