If "(count == NAME_MAX)" then we could end up putting the NUL terminator
one space beyond the end of the fw_name[] array.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index 64c6128..58f4f6f 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -1013,7 +1013,7 @@ static ssize_t cyapa_update_fw_store(struct device *dev,
char fw_name[NAME_MAX];
int ret, error;
- if (count > NAME_MAX) {
+ if (count >= NAME_MAX) {
dev_err(dev, "File name too long\n");
return -EINVAL;
}
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