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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-12-15 04:10:11 -0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-12-23 14:59:03 +0100 |
| commit | 249135d1a2ea3c1719c48d31351413d55d2fdef4 (patch) | |
| tree | 19309f9cf047a0c9da189f52fc8e94aeec776e61 /drivers/pnp | |
| parent | 319e2e3f63c348a9b66db4667efa73178e18b17d (diff) | |
| download | linux-249135d1a2ea3c1719c48d31351413d55d2fdef4.tar.gz | |
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')
| -rw-r--r-- | drivers/pnp/pnpacpi/core.c | 11 |
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, |