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PNPACPI: check return value of pnp_add_device()

Message ID 20131215121008.GA436@core.coreip.homeip.net (mailing list archive)
State Accepted, archived
Headers show

Commit Message

Dmitry Torokhov Dec. 15, 2013, 12:10 p.m. UTC 
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>
---
 drivers/pnp/pnpacpi/core.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index 14655a0..4bd4c54 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,