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usb: typec: tipd: Remove WARN_ON in tps6598x_block_read

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[ Upstream commit b7a0a63f3fed57d413bb857de164ea9c3984bc4e ]

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.

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Link: https://lore.kernel.org/r/20210914140235.65955-3-sven@svenpeter.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sven Peter 2021-09-14 16:02:35 +02:00 committed by Greg Kroah-Hartman
parent 679eee466d
commit eff8b76284
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/typec/tps6598x.c
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@ -109,7 +109,7 @@ 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)