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| author | Wolfram Sang <w.sang@pengutronix.de> | 2010-03-20 15:31:46 (GMT) |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-03-21 08:28:34 (GMT) |
| commit | 395b228858778d3c44f7c413693a6acaa8bb62dc (patch) | |
| tree | 89abea4e16319b41452217f49a20a810d30b50c5 /drivers | |
| parent | 4d682420cead1ce06d8cd44ae193414404f0e7f5 (diff) | |
| download | linux-395b228858778d3c44f7c413693a6acaa8bb62dc.tar.xz | |
mtd/maps/pismo: remove dangling pointer and a leak
While looking for drivers which forgot to clear i2c_clientdata before freeing
the data structure it points to, I found that the pismo driver even has a leak
on the probe error path.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/maps/pismo.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/mtd/maps/pismo.c b/drivers/mtd/maps/pismo.c index c48cad2..0a5e243 100644 --- a/drivers/mtd/maps/pismo.c +++ b/drivers/mtd/maps/pismo.c @@ -233,6 +233,7 @@ static int __devexit pismo_remove(struct i2c_client *client) /* FIXME: set_vpp needs saner arguments */ pismo_setvpp_remove_fix(pismo); + i2c_set_clientdata(client, NULL); kfree(pismo); return 0; @@ -271,7 +272,7 @@ static int __devinit pismo_probe(struct i2c_client *client, ret = pismo_eeprom_read(client, &eeprom, 0, sizeof(eeprom)); if (ret < 0) { dev_err(&client->dev, "error reading EEPROM: %d\n", ret); - return ret; + goto exit_free; } dev_info(&client->dev, "%.15s board found\n", eeprom.board); @@ -282,6 +283,11 @@ static int __devinit pismo_probe(struct i2c_client *client, pdata->cs_addrs[i]); return 0; + + exit_free: + i2c_set_clientdata(client, NULL); + kfree(pismo); + return ret; } static const struct i2c_device_id pismo_id[] = { |