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authorWolfram Sang <w.sang@pengutronix.de>2010-03-20 15:31:46 +0000
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-03-21 08:28:34 +0000
commit395b228858778d3c44f7c413693a6acaa8bb62dc (patch)
tree89abea4e16319b41452217f49a20a810d30b50c5 /drivers/mtd/maps
parent4d682420cead1ce06d8cd44ae193414404f0e7f5 (diff)
downloadblackbird-op-linux-395b228858778d3c44f7c413693a6acaa8bb62dc.tar.gz
blackbird-op-linux-395b228858778d3c44f7c413693a6acaa8bb62dc.zip
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/mtd/maps')
-rw-r--r--drivers/mtd/maps/pismo.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/mtd/maps/pismo.c b/drivers/mtd/maps/pismo.c
index c48cad271f5d..0a5e243d2bc6 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[] = {
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