From: Dan Carpenter <dan.carpenter@linaro.org>
Date: Tue, 9 Dec 2025 06:56:39 +0000 (+0300)
Subject: nfc: pn533: Fix error code in pn533_acr122_poweron_rdr()
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=885bebac9909994050bbbeed0829c727e42bd1b7;p=thirdparty%2Fkernel%2Flinux.git

nfc: pn533: Fix error code in pn533_acr122_poweron_rdr()

Set the error code if "transferred != sizeof(cmd)" instead of
returning success.

Fixes: dbafc28955fa ("NFC: pn533: don't send USB data off of the stack")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/aTfIJ9tZPmeUF4W1@stanley.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---

diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c
index ffd7367ce119..018a80674f06 100644
--- a/drivers/nfc/pn533/usb.c
+++ b/drivers/nfc/pn533/usb.c
@@ -406,7 +406,7 @@ static int pn533_acr122_poweron_rdr(struct pn533_usb_phy *phy)
 	if (rc || (transferred != sizeof(cmd))) {
 		nfc_err(&phy->udev->dev,
 			"Reader power on cmd error %d\n", rc);
-		return rc;
+		return rc ?: -EINVAL;
 	}
 
 	rc =  usb_submit_urb(phy->in_urb, GFP_KERNEL);