Re: [PATCH] platform: move from strlcpy with unused retval to strscpy

From: Maximilian Luz
Date: Thu Aug 18 2022 - 17:58:24 EST


On 8/18/22 23:00, Wolfram Sang wrote:
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@xxxxxxxxxxxxxx/
Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>

Reviewed-by: Maximilian Luz <luzmaximilian@xxxxxxxxx> # for platform/surface

---
drivers/platform/surface/surface3_power.c | 2 +-> drivers/platform/x86/dell/dell-wmi-sysman/sysman.c | 2 +-
drivers/platform/x86/intel/chtwc_int33fe.c | 6 +++---
drivers/platform/x86/thinkpad_acpi.c | 4 ++--
4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/platform/surface/surface3_power.c b/drivers/platform/surface/surface3_power.c
index 444ec81ba02d..4c53d116d59b 100644
--- a/drivers/platform/surface/surface3_power.c
+++ b/drivers/platform/surface/surface3_power.c
@@ -519,7 +519,7 @@ static int mshw0011_probe(struct i2c_client *client)
i2c_set_clientdata(client, data);
memset(&board_info, 0, sizeof(board_info));
- strlcpy(board_info.type, "MSHW0011-bat0", I2C_NAME_SIZE);
+ strscpy(board_info.type, "MSHW0011-bat0", I2C_NAME_SIZE);
bat0 = i2c_acpi_new_device(dev, 1, &board_info);
if (IS_ERR(bat0))
diff --git a/drivers/platform/x86/dell/dell-wmi-sysman/sysman.c b/drivers/platform/x86/dell/dell-wmi-sysman/sysman.c
index 636bdfa83284..0a6411a8a104 100644
--- a/drivers/platform/x86/dell/dell-wmi-sysman/sysman.c
+++ b/drivers/platform/x86/dell/dell-wmi-sysman/sysman.c
@@ -270,7 +270,7 @@ void strlcpy_attr(char *dest, char *src)
size_t len = strlen(src) + 1;
if (len > 1 && len <= MAX_BUFF)
- strlcpy(dest, src, len);
+ strscpy(dest, src, len);
/*len can be zero because any property not-applicable to attribute can
* be empty so check only for too long buffers and log error
diff --git a/drivers/platform/x86/intel/chtwc_int33fe.c b/drivers/platform/x86/intel/chtwc_int33fe.c
index c52ac23e2331..1ea989df513c 100644
--- a/drivers/platform/x86/intel/chtwc_int33fe.c
+++ b/drivers/platform/x86/intel/chtwc_int33fe.c
@@ -270,7 +270,7 @@ cht_int33fe_register_max17047(struct device *dev, struct cht_int33fe_data *data)
}
memset(&board_info, 0, sizeof(board_info));
- strlcpy(board_info.type, "max17047", I2C_NAME_SIZE);
+ strscpy(board_info.type, "max17047", I2C_NAME_SIZE);
board_info.dev_name = "max17047";
board_info.fwnode = fwnode;
data->battery_fg = i2c_acpi_new_device(dev, 1, &board_info);
@@ -361,7 +361,7 @@ static int cht_int33fe_typec_probe(struct platform_device *pdev)
}
memset(&board_info, 0, sizeof(board_info));
- strlcpy(board_info.type, "typec_fusb302", I2C_NAME_SIZE);
+ strscpy(board_info.type, "typec_fusb302", I2C_NAME_SIZE);
board_info.dev_name = "fusb302";
board_info.fwnode = fwnode;
board_info.irq = fusb302_irq;
@@ -381,7 +381,7 @@ static int cht_int33fe_typec_probe(struct platform_device *pdev)
memset(&board_info, 0, sizeof(board_info));
board_info.dev_name = "pi3usb30532";
board_info.fwnode = fwnode;
- strlcpy(board_info.type, "pi3usb30532", I2C_NAME_SIZE);
+ strscpy(board_info.type, "pi3usb30532", I2C_NAME_SIZE);
data->pi3usb30532 = i2c_acpi_new_device(dev, 3, &board_info);
if (IS_ERR(data->pi3usb30532)) {
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 22d4e8633e30..8dad0428a83c 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -7623,9 +7623,9 @@ static int __init volume_create_alsa_mixer(void)
data = card->private_data;
data->card = card;
- strlcpy(card->driver, TPACPI_ALSA_DRVNAME,
+ strscpy(card->driver, TPACPI_ALSA_DRVNAME,
sizeof(card->driver));
- strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME,
+ strscpy(card->shortname, TPACPI_ALSA_SHRTNAME,
sizeof(card->shortname));
snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s",
(thinkpad_id.ec_version_str) ?