git: 360b7c1635ea - main - ufshci: fix SCSI I/O request failure cleanup

The branch main has been updated by jaeyoon:

URL: https://cgit.FreeBSD.org/src/commit/?id=360b7c1635ea772d41275f8d1061cef4e131e328

commit 360b7c1635ea772d41275f8d1061cef4e131e328
Author:     Jaeyoon Choi <jaeyoon@FreeBSD.org>
AuthorDate: 2026-08-10 01:35:45 +0000
Commit:     Jaeyoon Choi <jaeyoon@FreeBSD.org>
CommitDate: 2026-08-10 02:28:48 +0000

    ufshci: fix SCSI I/O request failure cleanup
    
    ufshchi_sim_scsiio() did not check the M_NOWAIT request allocation
    for NULL. The CDB validation and submit failure paths also returned
    without freeing the request.
    
    Fail the CCB when the allocation returns NULL. Free the request on
    every failure path. Mark the CCB as queued right before the submit,
    so the failure paths above do not need to touch that flag.
    
    Sponsored by:           Samsung Electronics
    Reviewed by:            imp (mentor)
    Differential Revision:  https://reviews.freebsd.org/D58656
---
 sys/dev/ufshci/ufshci_sim.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/sys/dev/ufshci/ufshci_sim.c b/sys/dev/ufshci/ufshci_sim.c
index 404f3e99d1e2..234ee3bf7dfa 100644
--- a/sys/dev/ufshci/ufshci_sim.c
+++ b/sys/dev/ufshci/ufshci_sim.c
@@ -150,6 +150,11 @@ ufshchi_sim_scsiio(struct cam_sim *sim, union ccb *ccb)
 	else
 		req = ufshci_allocate_request_vaddr(payload, payload_len,
 		    M_NOWAIT, ufshci_sim_scsiio_done, ccb);
+	if (req == NULL) {
+		ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
+		xpt_done(ccb);
+		return;
+	}
 
 	req->request_size = sizeof(struct ufshci_cmd_command_upiu);
 	req->response_size = sizeof(struct ufshci_cmd_response_upiu);
@@ -178,8 +183,6 @@ ufshchi_sim_scsiio(struct cam_sim *sim, union ccb *ccb)
 
 	upiu->expected_data_transfer_length = htobe32(payload_len);
 
-	ccb->ccb_h.status |= CAM_SIM_QUEUED;
-
 	if (csio->ccb_h.flags & CAM_CDB_POINTER)
 		cdb = csio->cdb_io.cdb_ptr;
 	else
@@ -187,18 +190,22 @@ ufshchi_sim_scsiio(struct cam_sim *sim, union ccb *ccb)
 
 	if (cdb == NULL || csio->cdb_len > sizeof(upiu->cdb)) {
 		ccb->ccb_h.status = CAM_REQ_INVALID;
+		ufshci_free_request(req);
 		xpt_done(ccb);
 		return;
 	}
 	memcpy(upiu->cdb, cdb, csio->cdb_len);
 
+	ccb->ccb_h.status |= CAM_SIM_QUEUED;
 	error = ufshci_ctrlr_submit_transfer_request(ctrlr, req);
 	if (error == EBUSY) {
 		ccb->ccb_h.status = CAM_SCSI_BUSY;
+		ufshci_free_request(req);
 		xpt_done(ccb);
 		return;
 	} else if (error) {
 		ccb->ccb_h.status = CAM_REQ_INVALID;
+		ufshci_free_request(req);
 		xpt_done(ccb);
 		return;
 	}