dio: Fix buffer overflow in case of unknown board
With gcc 8.2.0:
drivers/dio/dio.c: In function ‘dio_init’:
drivers/dio/dio.c:240:17: warning: ‘strcpy’ writing 69 or more bytes into a region of size 64 overflows the destination [-Wstringop-overflow=]
strcpy(dev->name,dio_getname(dev->id));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Indeed, if an unknown board is present, the target buffer will overflow.
Shorten the unknown board name string to fix this, and declare it as an
array while at it.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
diff --git a/drivers/dio/dio.c b/drivers/dio/dio.c
index 92e78d1..c9aa15f 100644
--- a/drivers/dio/dio.c
+++ b/drivers/dio/dio.c
@@ -89,8 +89,8 @@ static struct dioname names[] =
#undef DIONAME
#undef DIOFBNAME
-static const char *unknowndioname
- = "unknown DIO board -- please email <linux-m68k@lists.linux-m68k.org>!";
+static const char unknowndioname[]
+ = "unknown DIO board, please email linux-m68k@lists.linux-m68k.org";
static const char *dio_getname(int id)
{