From: Dan Carpenter <dan.carpenter@oracle.com>
To: Guenter Roeck <linux@roeck-us.net>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org
Subject: [PATCH] usb: typec: tcpm: Fix a signedness bug in tcpm_fw_get_caps()
Date: Wed, 25 Sep 2019 14:02:19 +0300 [thread overview]
Message-ID: <20190925110219.GN3264@mwanda> (raw)
The "port->typec_caps.data" and "port->typec_caps.type" variables are
enums and in this context GCC will treat them as an unsigned int so they
can never be less than zero.
Fixes: ae8a2ca8a221 ("usb: typec: Group all TCPCI/TCPM code together")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
drivers/usb/typec/tcpm/tcpm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 96562744101c..d3b63e000ae2 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -4410,7 +4410,7 @@ static int tcpm_fw_get_caps(struct tcpm_port *port,
ret = fwnode_property_read_string(fwnode, "data-role", &cap_str);
if (ret == 0) {
port->typec_caps.data = typec_find_port_data_role(cap_str);
- if (port->typec_caps.data < 0)
+ if ((int)port->typec_caps.data < 0)
return -EINVAL;
}
@@ -4419,7 +4419,7 @@ static int tcpm_fw_get_caps(struct tcpm_port *port,
return ret;
port->typec_caps.type = typec_find_port_power_role(cap_str);
- if (port->typec_caps.type < 0)
+ if ((int)port->typec_caps.type < 0)
return -EINVAL;
port->port_type = port->typec_caps.type;
--
2.20.1
next reply other threads:[~2019-09-25 11:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-25 11:02 Dan Carpenter [this message]
2019-09-26 12:53 ` [PATCH] usb: typec: tcpm: Fix a signedness bug in tcpm_fw_get_caps() Guenter Roeck
2019-10-01 11:54 ` Dan Carpenter
2019-10-01 13:40 ` Guenter Roeck
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