]> git.hungrycats.org Git - linux/commit
virtio_blk: Fix signedness bug in virtblk_prep_rq()
authorRafael Mendonca <rafaelmendsr@gmail.com>
Fri, 21 Oct 2022 20:41:26 +0000 (17:41 -0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 12 Jan 2023 11:00:47 +0000 (12:00 +0100)
commit9f1490d9fd7c8fa66225cfbb93fddce6aed41a4f
tree48abdfdcf6201a80cd7b5c4202838dd55a7f09e9
parent9584ce867dbd51730884a82f9a05b29348d78625
virtio_blk: Fix signedness bug in virtblk_prep_rq()

[ Upstream commit a26116c1e74028914f281851488546c91cbae57d ]

The virtblk_map_data() function returns negative error codes, however, the
'nents' field of vbr->sg_table is an unsigned int, which causes the error
handling not to work correctly.

Cc: stable@vger.kernel.org
Fixes: 0e9911fa768f ("virtio-blk: support mq_ops->queue_rqs()")
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Message-Id: <20221021204126.927603-1-rafaelmendsr@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Suwan Kim <suwan.kim027@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/block/virtio_blk.c