From 74a96b51a36de4d86660fbc56b05d86668162d6b Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Fri, 25 Oct 2019 15:33:39 +0200
Subject: [PATCH] media: flexcop-usb: ensure -EIO is returned on error condition
Git-commit: 74a96b51a36de4d86660fbc56b05d86668162d6b
Patch-mainline: v5.5-rc1
References: git-fixes

An earlier commit hard coded a return 0 to function flexcop_usb_i2c_req
even though the an -EIO was intended to be returned in the case where
ret != buflen.  Fix this by replacing the return 0 with the return of
ret to return the error return code.

Addresses-coverity: ("Unused value")

Fixes: b430eaba0be5 ("[media] flexcop-usb: don't use stack for DMA")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/media/usb/b2c2/flexcop-usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/b2c2/flexcop-usb.c b/drivers/media/usb/b2c2/flexcop-usb.c
index d1331f828108..039963a7765b 100644
--- a/drivers/media/usb/b2c2/flexcop-usb.c
+++ b/drivers/media/usb/b2c2/flexcop-usb.c
@@ -295,7 +295,7 @@ static int flexcop_usb_i2c_req(struct flexcop_i2c_adapter *i2c,
 
 	mutex_unlock(&fc_usb->data_mutex);
 
-	return 0;
+	return ret;
 }
 
 /* actual bus specific access functions,
-- 
2.16.4