From: Andy Shevchenko <[email protected]>
[ Upstream commit 21f585480deb4bcf0d92b08879c35d066dfee030 ]
New GCC warns about inappropriate use of strncpy():
drivers/staging/fbtft/fbtft-core.c: In function ‘fbtft_framebuffer_alloc’:
drivers/staging/fbtft/fbtft-core.c:665:2: warning: ‘strncpy’ specified bound 16
equals destination size [-Wstringop-truncation]
665 | strncpy(info->fix.id, dev->driver->name, 16);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Later on the copy is being used with the assumption to be NULL terminated.
Make sure string is NULL terminated by switching to snprintf().
Signed-off-by: Andy Shevchenko <[email protected]>
Link:
https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/staging/fbtft/fbtft-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/fbtft/fbtft-core.c
b/drivers/staging/fbtft/fbtft-core.c
index a0a67aa517f0e..61f0286fb157e 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -666,7 +666,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct
fbtft_display *display,
fbdefio->deferred_io = fbtft_deferred_io;
fb_deferred_io_init(info);
- strncpy(info->fix.id, dev->driver->name, 16);
+ snprintf(info->fix.id, sizeof(info->fix.id), "%s", dev->driver->name);
info->fix.type = FB_TYPE_PACKED_PIXELS;
info->fix.visual = FB_VISUAL_TRUECOLOR;
info->fix.xpanstep = 0;
--
2.20.1
_______________________________________________
devel mailing list
[email protected]
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
