Key lookups may call read_smc() with a fixed-length key string,
and if the lookup fails, trailing stack content may appear in the
kernel log. Fixed with this patch.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
int i;
if (send_command(cmd) || send_argument(key)) {
- pr_warn("%s: read arg fail\n", key);
+ pr_warn("%.4s: read arg fail\n", key);
return -EIO;
}
for (i = 0; i < len; i++) {
if (__wait_status(0x05)) {
- pr_warn("%s: read data fail\n", key);
+ pr_warn("%.4s: read data fail\n", key);
return -EIO;
}
buffer[i] = inb(APPLESMC_DATA_PORT);