After sucessfully registering the misc device the driver iounmaps the device registers and kfree's the device data structure. Ouch ! This was introduced with commit e42311d75 (riowatchdog: Convert to pure OF driver) and went unnoticed for more than a year :) Return success instead of dropping into the error cleanup code path. Signed-off-by: Thomas Gleixner Cc: David S. Miller --- drivers/watchdog/riowd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6-tip/drivers/watchdog/riowd.c =================================================================== --- linux-2.6-tip.orig/drivers/watchdog/riowd.c +++ linux-2.6-tip/drivers/watchdog/riowd.c @@ -206,7 +206,7 @@ static int __devinit riowd_probe(struct dev_set_drvdata(&op->dev, p); riowd_device = p; - err = 0; + return 0; out_iounmap: of_iounmap(&op->resource[0], p->regs, 2); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/