[PATCH 6.12 059/567] nfc: pn533: Fix error code in pn533_acr122_poweron_rdr()

Greg Kroah-Hartman
2026-01-06T17:17:32Z

From: Dan Carpenter <dan.carpenter@linaro.org>

[ Upstream commit 885bebac9909994050bbbeed0829c727e42bd1b7 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/nfc/pn533/usb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c
index ffd7367ce1194..018a80674f06e 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);
--
2.51.0