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-rw-r--r--drivers/nfc/port100.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c
index 2d4bbe3..14a3cc2 100644
--- a/drivers/nfc/port100.c
+++ b/drivers/nfc/port100.c
@@ -809,6 +809,12 @@ static int port100_send_cmd_async(struct port100 *dev, u8 cmd_code,
PORT100_FRAME_MAX_PAYLOAD_LEN +
PORT100_FRAME_TAIL_LEN;
+ if (dev->cmd) {
+ nfc_err(&dev->interface->dev,
+ "A command is still in process\n");
+ return -EBUSY;
+ }
+
resp = alloc_skb(resp_len, GFP_KERNEL);
if (!resp)
return -ENOMEM;
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