GIT: unionfs2-2.6.27.y: i2c: Do not use device name after device_unregister
Erez Zadok
ezk at fsl.cs.sunysb.edu
Thu Aug 12 23:15:10 EDT 2010
commit 582ab0e1e4004672a389a10e2d1ed27edaff119e
Author: Thadeu Lima de Souza Cascardo <cascardo at holoscopio.com>
Date: Sun Jan 17 19:05:58 2010 +0100
i2c: Do not use device name after device_unregister
In Linus' tree:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c556752109794a5ff199b80a1673336b4df8433a
dev_dbg outputs dev_name, which is released with device_unregister. This bug
resulted in output like this:
i2c Xy2�0: adapter [SMBus I801 adapter at 1880] unregistered
The right output would be:
i2c i2c-0: adapter [SMBus I801 adapter at 1880] unregistered
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo at holoscopio.com>
Signed-off-by: Jean Delvare <khali at linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh at suse.de>
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index a10d0d2..3d3fb00 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -644,6 +644,9 @@ int i2c_del_adapter(struct i2c_adapter *adap)
}
}
+ /* device name is gone after device_unregister */
+ dev_dbg(&adap->dev, "adapter [%s] unregistered\n", adap->name);
+
/* clean up the sysfs representation */
init_completion(&adap->dev_released);
device_unregister(&adap->dev);
@@ -654,8 +657,6 @@ int i2c_del_adapter(struct i2c_adapter *adap)
/* free bus id */
idr_remove(&i2c_adapter_idr, adap->nr);
- dev_dbg(&adap->dev, "adapter [%s] unregistered\n", adap->name);
-
/* Clear the device structure in case this adapter is ever going to be
added again */
memset(&adap->dev, 0, sizeof(adap->dev));
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