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-rw-r--r--drivers/hid/hid-ft260.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/hid/hid-ft260.c b/drivers/hid/hid-ft260.c
index ac133980dfe9..b4f180c8750a 100644
--- a/drivers/hid/hid-ft260.c
+++ b/drivers/hid/hid-ft260.c
@@ -409,6 +409,9 @@ static int ft260_i2c_write(struct ft260_device *dev, u8 addr, u8 *data,
struct ft260_i2c_write_request_report *rep =
(struct ft260_i2c_write_request_report *)dev->write_buf;
+ if (len < 1)
+ return -EINVAL;
+
rep->flag = FT260_FLAG_START;
do {