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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2013-12-15 04:10:11 -0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-12-23 14:59:03 +0100
commit249135d1a2ea3c1719c48d31351413d55d2fdef4 (patch)
tree19309f9cf047a0c9da189f52fc8e94aeec776e61 /drivers/pnp/pnpacpi
parent319e2e3f63c348a9b66db4667efa73178e18b17d (diff)
PNPACPI: check return value of pnp_add_device()
pnp_add_device() may fail so we need to handle errors and avoid leaking memory. Also, do not use ACPI-specific return codes (AE_OK) but rather standard one (0). Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/pnp/pnpacpi')
-rw-r--r--drivers/pnp/pnpacpi/core.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index 14655a0f0431..4bd4c54ad205 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -242,6 +242,7 @@ static int __init pnpacpi_add_device(struct acpi_device *device)
struct pnp_dev *dev;
char *pnpid;
struct acpi_hardware_id *id;
+ int error;
/* Skip devices that are already bound */
if (device->physical_node_count)
@@ -300,10 +301,16 @@ static int __init pnpacpi_add_device(struct acpi_device *device)
/* clear out the damaged flags */
if (!dev->active)
pnp_init_resources(dev);
- pnp_add_device(dev);
+
+ error = pnp_add_device(dev);
+ if (error) {
+ put_device(&dev->dev);
+ return error;
+ }
+
num++;
- return AE_OK;
+ return 0;
}
static acpi_status __init pnpacpi_add_device_handler(acpi_handle handle,