Merge: scsi: storvsc: Fix swiotlb bounce buffer leak in confidential VM

MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/1887

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2150660

- scsi: storvsc: Fix swiotlb bounce buffer leak in confidential VM [Emanuele Giuseppe Esposito]

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>

Approved-by: Mohamed Gamal Morsy <mgamal@redhat.com>
Approved-by: Cathy Avery <cavery@redhat.com>
Approved-by: Vitaly Kuznetsov <vkuznets@redhat.com>

Signed-off-by: Herton R. Krzesinski <herton@redhat.com>

Author: Herton R. Krzesinski

drivers/scsi/storvsc_drv.c

@@ -1828,6 +1828,9 @@ static int storvsc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scmnd)
 	ret = storvsc_do_io(dev, cmd_request, get_cpu());
 	put_cpu();
 
+	if (ret)
+		scsi_dma_unmap(scmnd);
+
 	if (ret == -EAGAIN) {
 		/* no more space */
 		ret = SCSI_MLQUEUE_DEVICE_BUSY;