* patch "usb: typec: tcpm: usb: typec: tcpm: Fix a signedness bug in" added to usb-linus
@ 2019-10-04 9:07 gregkh
0 siblings, 0 replies; only message in thread
From: gregkh @ 2019-10-04 9:07 UTC (permalink / raw)
To: dan.carpenter, gregkh, heikki.krogerus, linux, stable
This is a note to let you know that I've just added the patch titled
usb: typec: tcpm: usb: typec: tcpm: Fix a signedness bug in
to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
From 7101949f36fc77b530b73e4c6bd0066a2740d75b Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 1 Oct 2019 15:01:17 +0300
Subject: usb: typec: tcpm: usb: typec: tcpm: Fix a signedness bug in
tcpm_fw_get_caps()
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>
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20191001120117.GA23528@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/typec/tcpm/tcpm.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 96562744101c..5f61d9977a15 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -4409,18 +4409,20 @@ static int tcpm_fw_get_caps(struct tcpm_port *port,
/* USB data support is optional */
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)
- return -EINVAL;
+ ret = typec_find_port_data_role(cap_str);
+ if (ret < 0)
+ return ret;
+ port->typec_caps.data = ret;
}
ret = fwnode_property_read_string(fwnode, "power-role", &cap_str);
if (ret < 0)
return ret;
- port->typec_caps.type = typec_find_port_power_role(cap_str);
- if (port->typec_caps.type < 0)
- return -EINVAL;
+ ret = typec_find_port_power_role(cap_str);
+ if (ret < 0)
+ return ret;
+ port->typec_caps.type = ret;
port->port_type = port->typec_caps.type;
if (port->port_type == TYPEC_PORT_SNK)
--
2.23.0
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2019-10-04 9:07 patch "usb: typec: tcpm: usb: typec: tcpm: Fix a signedness bug in" added to usb-linus gregkh
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