From: Mauro Carvalho Chehab Date: Fri, 4 May 2018 15:16:49 +0000 (-0400) Subject: media: lgdt330x: don't use an uninitialized state X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=89eaaf2d19a6cfff0a16014405c2a65b5257b8a1;p=openwrt%2Fstaging%2Fblogic.git media: lgdt330x: don't use an uninitialized state If state is not initialized or is freed, we can't use it: drivers/media/dvb-frontends/lgdt330x.c:920 lgdt330x_probe() error: potential null dereference 'state'. (kzalloc returns null) drivers/media/dvb-frontends/lgdt330x.c:920 lgdt330x_probe() error: we previously assumed 'state' could be null (see line 878) drivers/media/dvb-frontends/lgdt330x.c:920 lgdt330x_probe() error: dereferencing freed memory 'state' Fixes: 23ba635d45f5 ("media: lgdt330x: convert it to the new I2C binding way") Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/dvb-frontends/lgdt330x.c b/drivers/media/dvb-frontends/lgdt330x.c index 927fd68e05ec..f6731738b073 100644 --- a/drivers/media/dvb-frontends/lgdt330x.c +++ b/drivers/media/dvb-frontends/lgdt330x.c @@ -917,7 +917,8 @@ static int lgdt330x_probe(struct i2c_client *client, error: kfree(state); - dprintk(state, "ERROR\n"); + if (debug) + dev_printk(KERN_DEBUG, &client->dev, "Error loading lgdt330x driver\n"); return -ENODEV; } struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *_config,