Re: [PATCH linux-next] fbdev: use strscpy() to instead of strncpy()

From: Helge Deller
Date: Wed Dec 28 2022 - 02:58:37 EST


On 12/28/22 02:44, yang.yang29@xxxxxxxxxx wrote:
From: Xu Panda <xu.panda@xxxxxxxxxx>

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@xxxxxxxxxx>
Signed-off-by: Yang Yang <yang.yang29@xxxxxxx>
---
drivers/video/fbdev/aty/atyfb_base.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

applied.
Thanks!
Helge



diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
index 0ccf5d401ecb..851c1236fddb 100644
--- a/drivers/video/fbdev/aty/atyfb_base.c
+++ b/drivers/video/fbdev/aty/atyfb_base.c
@@ -3192,8 +3192,7 @@ static void aty_init_lcd(struct atyfb_par *par, u32 bios_base)
* which we print to the screen.
*/
id = *(u8 *)par->lcd_table;
- strncpy(model, (char *)par->lcd_table+1, 24);
- model[23] = 0;
+ strscpy(model, (char *)par->lcd_table+1, 24);

width = par->lcd_width = *(u16 *)(par->lcd_table+25);
height = par->lcd_height = *(u16 *)(par->lcd_table+27);