From: Zizhi Wo <wozizhi@huaweicloud.com>
Date: Thu, 4 Sep 2025 02:39:55 +0000 (+0800)
Subject: tty/vt: Add missing return value for VT_RESIZE in vt_ioctl()
X-Git-Tag: v6.17.8~384
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=98ec880a8598f2073dc263d02c5672df6a8d587f;p=thirdparty%2Fkernel%2Fstable.git

tty/vt: Add missing return value for VT_RESIZE in vt_ioctl()

[ Upstream commit da7e8b3823962b13e713d4891e136a261ed8e6a2 ]

In vt_ioctl(), the handler for VT_RESIZE always returns 0, which prevents
users from detecting errors. Add the missing return value so that errors
can be properly reported to users like vt_resizex().

Signed-off-by: Zizhi Wo <wozizhi@huaweicloud.com>
Link: https://lore.kernel.org/r/20250904023955.3892120-1-wozizhi@huaweicloud.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 61342e06970a0..eddb25bec996e 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -923,7 +923,9 @@ int vt_ioctl(struct tty_struct *tty,
 
 			if (vc) {
 				/* FIXME: review v tty lock */
-				__vc_resize(vc_cons[i].d, cc, ll, true);
+				ret = __vc_resize(vc_cons[i].d, cc, ll, true);
+				if (ret)
+					return ret;
 			}
 		}
 		console_unlock();