Messages in this thread | | | Date | Wed, 15 Sep 2021 10:23:04 +0300 | From | Heikki Krogerus <> | Subject | Re: [PATCH v2 3/3] usb: typec: tipd: Remove WARN_ON in tps6598x_block_read |
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On Tue, Sep 14, 2021 at 04:02:35PM +0200, Sven Peter wrote: > Calling tps6598x_block_read with a higher than allowed len can be > handled by just returning an error. There's no need to crash systems > with panic-on-warn enabled. > > Signed-off-by: Sven Peter <sven@svenpeter.dev>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> --- > v1 -> v2: > - added this patch to also remove the WARN_ON in tps6598x_block_read > as suggested by greg k-h > > drivers/usb/typec/tipd/core.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c > index 8c79ba17a157..93e56291f0cf 100644 > --- a/drivers/usb/typec/tipd/core.c > +++ b/drivers/usb/typec/tipd/core.c > @@ -117,7 +117,7 @@ tps6598x_block_read(struct tps6598x *tps, u8 reg, void *val, size_t len) > u8 data[TPS_MAX_LEN + 1]; > int ret; > > - if (WARN_ON(len + 1 > sizeof(data))) > + if (len + 1 > sizeof(data)) > return -EINVAL; > > if (!tps->i2c_protocol) > -- > 2.25.1
thanks,
-- heikki
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