[PATCH RESEND] tc: account for device_register() failure

From: Levente Kurusa
Date: Wed Apr 02 2014 - 06:01:12 EST


This patch makes the TURBOchannel driver bail out if the call
to device_register() failed.

Signed-off-by: Levente Kurusa <levex@xxxxxxxxx>
---
Resending as per Maciej's request to proper list and
people.
---
tc.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/tc/tc.c b/drivers/tc/tc.c
index a8aaf6a..6b3a038 100644
--- a/drivers/tc/tc.c
+++ b/drivers/tc/tc.c
@@ -129,7 +129,10 @@ static void __init tc_bus_add_devices(struct tc_bus *tbus)

tc_device_get_irq(tdev);

- device_register(&tdev->dev);
+ if (device_register(&tdev->dev)) {
+ put_device(&tdev->dev);
+ goto out_err;
+ }
list_add_tail(&tdev->node, &tbus->devices);

out_err:
@@ -148,7 +151,10 @@ static int __init tc_init(void)

INIT_LIST_HEAD(&tc_bus.devices);
dev_set_name(&tc_bus.dev, "tc");
- device_register(&tc_bus.dev);
+ if (device_register(&tc_bus.dev)) {
+ put_device(&tc_bus.dev);
+ return 0;
+ }

if (tc_bus.info.slot_size) {
unsigned int tc_clock = tc_get_speed(&tc_bus) / 100000;

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