[net-next] wl18xx: use strscpy() to instead of strncpy()

Message ID 202212231057406402834@zte.com.cn
State New
Headers
Series [net-next] wl18xx: use strscpy() to instead of strncpy() |

Commit Message

Yang Yang Dec. 23, 2022, 2:57 a.m. UTC
  From: Xu Panda <xu.panda@zte.com.cn>

The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL-terminated strings.

Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com>
---
 drivers/net/wireless/ti/wl18xx/main.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
  

Comments

Kalle Valo Dec. 23, 2022, 6:31 a.m. UTC | #1
<yang.yang29@zte.com.cn> writes:

> From: Xu Panda <xu.panda@zte.com.cn>
>
> The implementation of strscpy() is more robust and safer.
> That's now the recommended way to copy NUL-terminated strings.
>
> Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
> Signed-off-by: Yang Yang <yang.yang29@zte.com>
> ---
>  drivers/net/wireless/ti/wl18xx/main.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)

Wireless patches go to wireless-next, not net-next. Also always Cc
linux-wireless list, more info in the wiki link below.
  

Patch

diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index 0b3cf8477c6c..1e4a430d1543 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -1516,12 +1516,9 @@  static int wl18xx_handle_static_data(struct wl1271 *wl,
 	struct wl18xx_static_data_priv *static_data_priv =
 		(struct wl18xx_static_data_priv *) static_data->priv;

-	strncpy(wl->chip.phy_fw_ver_str, static_data_priv->phy_version,
+	strscpy(wl->chip.phy_fw_ver_str, static_data_priv->phy_version,
 		sizeof(wl->chip.phy_fw_ver_str));

-	/* make sure the string is NULL-terminated */
-	wl->chip.phy_fw_ver_str[sizeof(wl->chip.phy_fw_ver_str) - 1] = '\0';
-
 	wl1271_info("PHY firmware version: %s", static_data_priv->phy_version);

 	return 0;