From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 9 Aug 2019 03:02:11 +0000 (-0700)
Subject: scsi: qla2xxx: Complain if sp->done() is not called from the completion path
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=88263208dd23;p=linux.git

scsi: qla2xxx: Complain if sp->done() is not called from the completion path

Not calling sp->done() from the command completion path is a severe bug.
Hence complain loudly if that happens.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 3fa8ca63429c7..64c84e53011ed 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -243,6 +243,10 @@ qla2x00_async_iocb_timeout(void *data)
 			sp->done(sp, QLA_FUNCTION_TIMEOUT);
 		}
 		break;
+	default:
+		WARN_ON_ONCE(true);
+		sp->done(sp, QLA_FUNCTION_TIMEOUT);
+		break;
 	}
 }
 
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 55eb51539cb07..7533e420e5713 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -2786,6 +2786,8 @@ out:
 
 	if (rsp->status_srb == NULL)
 		sp->done(sp, res);
+	else
+		WARN_ON_ONCE(true);
 }
 
 /**
@@ -2843,6 +2845,8 @@ qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
 	if (sense_len == 0) {
 		rsp->status_srb = NULL;
 		sp->done(sp, cp->result);
+	} else {
+		WARN_ON_ONCE(true);
 	}
 }
 
diff --git a/drivers/scsi/qla2xxx/qla_mr.c b/drivers/scsi/qla2xxx/qla_mr.c
index 06985b2d48ebe..605b59c76c901 100644
--- a/drivers/scsi/qla2xxx/qla_mr.c
+++ b/drivers/scsi/qla2xxx/qla_mr.c
@@ -2539,6 +2539,8 @@ check_scsi_status:
 
 	if (rsp->status_srb == NULL)
 		sp->done(sp, res);
+	else
+		WARN_ON_ONCE(true);
 }
 
 /**
@@ -2616,6 +2618,8 @@ qlafx00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
 	if (sense_len == 0) {
 		rsp->status_srb = NULL;
 		sp->done(sp, cp->result);
+	} else {
+		WARN_ON_ONCE(true);
 	}
 }