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-rw-r--r--drivers/s390/char/sclp_async.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/s390/char/sclp_async.c b/drivers/s390/char/sclp_async.c
index a4f68e5b9c9..bf4a9f455d8 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;