diff options
| -rw-r--r-- | drivers/s390/char/sclp_async.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/s390/char/sclp_async.c b/drivers/s390/char/sclp_async.c index a4f68e5b9c96..bf4a9f455d8e 100644 --- a/drivers/s390/char/sclp_async.c +++ b/drivers/s390/char/sclp_async.c @@ -68,15 +68,14 @@ static int proc_handler_callhome(struct ctl_table *ctl, int write, { unsigned long val; int len, rc; - char buf[2]; + char buf[3]; - if (!*count | (*ppos && !write)) { + if (!*count || (*ppos && !write)) { *count = 0; return 0; } if (!write) { - len = sprintf(buf, "%d\n", callhome_enabled); - buf[len] = '\0'; + len = snprintf(buf, sizeof(buf), "%d\n", callhome_enabled); rc = copy_to_user(buffer, buf, sizeof(buf)); if (rc != 0) return -EFAULT; |