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| author | Wolfram Sang <w.sang@pengutronix.de> | 2010-03-20 04:12:50 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-04-07 18:00:46 +1000 |
| commit | 7429b3842cfb2b8ef5d333d8f680d80f8f7c787f (patch) | |
| tree | 978cf3d94918070f5e6303d1aad233b3b4e57cd3 | |
| parent | 21dbeb91a24d867af0e98ba155bfa80d2906344f (diff) | |
| download | linux-stable-7429b3842cfb2b8ef5d333d8f680d80f8f7c787f.tar.gz linux-stable-7429b3842cfb2b8ef5d333d8f680d80f8f7c787f.tar.bz2 linux-stable-7429b3842cfb2b8ef5d333d8f680d80f8f7c787f.zip | |
powerpc/pmac: Fix dangling pointers
Fix I2C-drivers which missed setting clientdata to NULL before freeing the
structure it points to. Also fix drivers which do this _after_ the structure
was freed already.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Colin Leroy <colin@colino.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | drivers/macintosh/therm_adt746x.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c index c42eeb43042d..16d82f17ae82 100644 --- a/drivers/macintosh/therm_adt746x.c +++ b/drivers/macintosh/therm_adt746x.c @@ -182,6 +182,7 @@ remove_thermostat(struct i2c_client *client) thermostat = NULL; + i2c_set_clientdata(client, NULL); kfree(th); return 0; @@ -399,6 +400,7 @@ static int probe_thermostat(struct i2c_client *client, rc = read_reg(th, CONFIG_REG); if (rc < 0) { dev_err(&client->dev, "Thermostat failed to read config!\n"); + i2c_set_clientdata(client, NULL); kfree(th); return -ENODEV; } |