[Qemu-stable] Stable 2.12.1 Request: "ccid-card-passthru: fix regression in realize()"

[Jason Andryuk]

I'd like to request this commit for QEMU 2.12.1 stable backport:

commit e58d64a16abc "ccid-card-passthru: fix regression in realize()"

The patch fixes a VM start failure which I experience on 2.12.0.
Patch inlined below

Thanks,
Jason

>From e58d64a16abc2304c4dcb644411eb9580bf63b1e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <address@hidden>
Date: Tue, 15 May 2018 17:30:39 +0200
Subject: [PATCH] ccid-card-passthru: fix regression in realize()
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Since cc847bfd16d894fd8c1a2ce25f31772f6cdbbc74, CCID card-passthru
fails to intialize, because it changed a debug line to an error,
probably by mistake. Change it back to a DPRINTF debug.

(solves Boxes creating VM with smartcard passthru failing to start)

Signed-off-by: Marc-André Lureau <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
Message-id: address@hidden
Signed-off-by: Gerd Hoffmann <address@hidden>
---
 hw/usb/ccid-card-passthru.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/usb/ccid-card-passthru.c b/hw/usb/ccid-card-passthru.c
index 7684db0cb3..25fb19b0d7 100644
--- a/hw/usb/ccid-card-passthru.c
+++ b/hw/usb/ccid-card-passthru.c
@@ -345,7 +345,7 @@ static void passthru_realize(CCIDCardState *base,
Error **errp)
     card->vscard_in_pos = 0;
     card->vscard_in_hdr = 0;
     if (qemu_chr_fe_backend_connected(&card->cs)) {
-        error_setg(errp, "ccid-card-passthru: initing chardev");
+        DPRINTF(card, D_INFO, "ccid-card-passthru: initing chardev");
         qemu_chr_fe_set_handlers(&card->cs,
             ccid_card_vscard_can_read,
             ccid_card_vscard_read,