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Subject[PATCH] tty: move from strlcpy with unused retval to strscpy
Date
Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
drivers/tty/hvc/hvcs.c | 2 +-
drivers/tty/serial/earlycon.c | 6 +++---
drivers/tty/serial/serial_core.c | 2 +-
drivers/tty/serial/sunsu.c | 6 +++---
drivers/tty/serial/sunzilog.c | 6 +++---
5 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index 9b7e8246a464..b79ce8d34f11 100644
--- a/drivers/tty/hvc/hvcs.c
+++ b/drivers/tty/hvc/hvcs.c
@@ -839,7 +839,7 @@ static void hvcs_set_pi(struct hvcs_partner_info *pi, struct hvcs_struct *hvcsd)
hvcsd->p_partition_ID = pi->partition_ID;

/* copy the null-term char too */
- strlcpy(hvcsd->p_location_code, pi->location_code,
+ strscpy(hvcsd->p_location_code, pi->location_code,
sizeof(hvcsd->p_location_code));
}

diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
index 88d08ba1ca83..a5f380584cda 100644
--- a/drivers/tty/serial/earlycon.c
+++ b/drivers/tty/serial/earlycon.c
@@ -67,7 +67,7 @@ static void __init earlycon_init(struct earlycon_device *device,
if (*s)
earlycon->index = simple_strtoul(s, NULL, 10);
len = s - name;
- strlcpy(earlycon->name, name, min(len + 1, sizeof(earlycon->name)));
+ strscpy(earlycon->name, name, min(len + 1, sizeof(earlycon->name)));
earlycon->data = &early_console_dev;
}

@@ -123,7 +123,7 @@ static int __init parse_options(struct earlycon_device *device, char *options)
device->baud = simple_strtoul(options, NULL, 0);
length = min(strcspn(options, " ") + 1,
(size_t)(sizeof(device->options)));
- strlcpy(device->options, options, length);
+ strscpy(device->options, options, length);
}

return 0;
@@ -304,7 +304,7 @@ int __init of_setup_earlycon(const struct earlycon_id *match,

if (options) {
early_console_dev.baud = simple_strtoul(options, NULL, 0);
- strlcpy(early_console_dev.options, options,
+ strscpy(early_console_dev.options, options,
sizeof(early_console_dev.options));
}
earlycon_init(&early_console_dev, match->name);
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 12c87cd201a7..3561a160cbd5 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -2497,7 +2497,7 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
"MMIO 0x%llx", (unsigned long long)port->mapbase);
break;
default:
- strlcpy(address, "*unknown*", sizeof(address));
+ strscpy(address, "*unknown*", sizeof(address));
break;
}

diff --git a/drivers/tty/serial/sunsu.c b/drivers/tty/serial/sunsu.c
index 84d545e5a8c7..d5dcb612804e 100644
--- a/drivers/tty/serial/sunsu.c
+++ b/drivers/tty/serial/sunsu.c
@@ -1217,13 +1217,13 @@ static int sunsu_kbd_ms_init(struct uart_sunsu_port *up)
serio->id.type = SERIO_RS232;
if (up->su_type == SU_PORT_KBD) {
serio->id.proto = SERIO_SUNKBD;
- strlcpy(serio->name, "sukbd", sizeof(serio->name));
+ strscpy(serio->name, "sukbd", sizeof(serio->name));
} else {
serio->id.proto = SERIO_SUN;
serio->id.extra = 1;
- strlcpy(serio->name, "sums", sizeof(serio->name));
+ strscpy(serio->name, "sums", sizeof(serio->name));
}
- strlcpy(serio->phys,
+ strscpy(serio->phys,
(!(up->port.line & 1) ? "su/serio0" : "su/serio1"),
sizeof(serio->phys));

diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index c14275d83b0b..c44cf613ff1a 100644
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -1307,13 +1307,13 @@ static void sunzilog_register_serio(struct uart_sunzilog_port *up)
serio->id.type = SERIO_RS232;
if (up->flags & SUNZILOG_FLAG_CONS_KEYB) {
serio->id.proto = SERIO_SUNKBD;
- strlcpy(serio->name, "zskbd", sizeof(serio->name));
+ strscpy(serio->name, "zskbd", sizeof(serio->name));
} else {
serio->id.proto = SERIO_SUN;
serio->id.extra = 1;
- strlcpy(serio->name, "zsms", sizeof(serio->name));
+ strscpy(serio->name, "zsms", sizeof(serio->name));
}
- strlcpy(serio->phys,
+ strscpy(serio->phys,
((up->flags & SUNZILOG_FLAG_CONS_KEYB) ?
"zs/serio0" : "zs/serio1"),
sizeof(serio->phys));
--
2.35.1
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