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| author |   Jean Delvare <khali@linux-fr.org> | 2008-07-16 19:30:05 +0200 |
|---|---|---|
| committer |   Jean Delvare <khali@mahadeva.delvare> | 2008-07-16 19:30:05 +0200 |
| commit | bd4bc3dbded9cd7b2bdca6bba1aecb4251a8039d (patch) | |
| tree | 463f7b4283b3924abf504e4db020050bd2b55db5 /drivers/i2c/i2c-core.c | |
| parent | Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc (diff) | |
| download | linux-dev-bd4bc3dbded9cd7b2bdca6bba1aecb4251a8039d.tar.xz linux-dev-bd4bc3dbded9cd7b2bdca6bba1aecb4251a8039d.zip | |
i2c: Clear i2c_adapter.dev on adapter removal
Clear i2c_adapter.dev on adapter removal. This makes it possible to
re-add the adapter at a later point, which some drivers
(i2c-amd756-s4882, i2c-nforce2-s4985) actually do.
This fixes a bug reported by John Stultz here:
http://lkml.org/lkml/2008/7/15/720
and by Ingo Molar there:
http://lkml.org/lkml/2008/7/16/78
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/i2c/i2c-core.c')
| -rw-r--r-- | drivers/i2c/i2c-core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 0a79f7661017..7608df83d6d1 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -654,6 +654,10 @@ int i2c_del_adapter(struct i2c_adapter *adap) 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)); + out_unlock: mutex_unlock(&core_lock); return res; |