[PATCH 3/3] hwmon: ibmpowernv: Silence strncpy() warning

[Lee Jones]

Fixes the following W=1 kernel build warning(s):

 from drivers/hwmon/ibmpowernv.c:11:
 In function ‘strncpy’,
 inlined from ‘get_sensor_index_attr’ at drivers/hwmon/ibmpowernv.c:243:2,
 inlined from ‘create_device_attrs’ at drivers/hwmon/ibmpowernv.c:280:8:
 include/linux/string.h:297:30: warning: ‘__builtin_strncpy’ specified bound 32 equals destination size [-Wstringop-truncation]
 297 | #define __underlying_strncpy __builtin_strncpy
 | ^
 include/linux/string.h:307:9: note: in expansion of macro ‘__underlying_strncpy’
 307 | return __underlying_strncpy(p, q, size);
 | ^~~~~~~~~~~~~~~~~~~~

Cc: Jean Delvare <jdelvare@xxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Neelesh Gupta <neelegup@xxxxxxxxxxxxxxxxxx>
Cc: linux-hwmon@xxxxxxxxxxxxxxx
Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
---
 drivers/hwmon/ibmpowernv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpowernv.c
index a750647e66a47..8e3724728cce0 100644
--- a/drivers/hwmon/ibmpowernv.c
+++ b/drivers/hwmon/ibmpowernv.c
@@ -240,7 +240,7 @@ static int get_sensor_index_attr(const char *name, u32 *index, char *attr)
 	if (err)
 		return err;
 
-	strncpy(attr, dash_pos + 1, MAX_ATTR_LEN);
+	strscpy(attr, dash_pos + 1, MAX_ATTR_LEN);
 
 	return 0;
 }
-- 
2.25.1