4.14-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit 8e41cae64b08fe2e86a9ffb88b295c6b4b3a3322 ]
gcc warning this:
drivers/net/ieee802154/ca8210.c:730:10: warning: comparison is always false due to limited range of data type [-Wtype-limits]
'len' is u8 type, we get it from buf[1] adding 2, which can overflow. This patch change the type of 'len' to unsigned int to avoid this,also fix the gcc warning.
Fixes: ded845a781a5 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver") Signed-off-by: YueHaibing yuehaibing@huawei.com Signed-off-by: Stefan Schmidt stefan@datenfreihafen.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ieee802154/ca8210.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c index 22e466ea919a..dcd10dba08c7 100644 --- a/drivers/net/ieee802154/ca8210.c +++ b/drivers/net/ieee802154/ca8210.c @@ -722,7 +722,7 @@ static void ca8210_mlme_reset_worker(struct work_struct *work) static void ca8210_rx_done(struct cas_control *cas_ctl) { u8 *buf; - u8 len; + unsigned int len; struct work_priv_container *mlme_reset_wpc; struct ca8210_priv *priv = cas_ctl->priv;
@@ -731,7 +731,7 @@ static void ca8210_rx_done(struct cas_control *cas_ctl) if (len > CA8210_SPI_BUF_SIZE) { dev_crit( &priv->spi->dev, - "Received packet len (%d) erroneously long\n", + "Received packet len (%u) erroneously long\n", len ); goto finish;