1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/siox/siox-core.c b/drivers/siox/siox-core.c
index fdfcdea25867..16590dfaafa4 100644
--- a/drivers/siox/siox-core.c
+++ b/drivers/siox/siox-core.c
@@ -594,7 +594,7 @@ static ssize_t device_add_store(struct device *dev,
         size_t inbytes = 0, outbytes = 0;
         u8 statustype = 0;
 
-        ret = sscanf(buf, "%20s %zu %zu %hhu", type, &inbytes,
+        ret = sscanf(buf, "%19s %zu %zu %hhu", type, &inbytes,
                      &outbytes, &statustype);
         if (ret != 3 && ret != 4)
                 return -EINVAL;