Return ENOTSUPP instead of ENOSYS for operations that are not supported

ENOSYS must only be used inside system calls.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>

qla2x00t/qla_bsg.c

@@ -1594,7 +1594,7 @@ qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job)
 	default:
 		bsg_job->reply->result = (DID_ERROR << 16);
 		bsg_job->job_done(bsg_job);
-		return -ENOSYS;
+		return -ENOTSUPP;
 	}
 }
 

scst/src/dev_handlers/scst_vdisk.c

@@ -7344,7 +7344,7 @@ static int vdisk_create_bioset(struct scst_vdisk_dev *virt_dev)
 		/* The same, pool size doesn't really matter */
 		res = bioset_integrity_create(virt_dev->vdisk_bioset, 2);
 #else
-		res = -ENOSYS;
+		res = -ENOTSUPP;
 #endif
 		if (res != 0) {
 			PRINT_ERROR("Failed to create integrity bioset "

scst/src/scst_proc.c

@@ -1404,7 +1404,7 @@ static ssize_t scst_proc_scsi_tgt_write(struct file *file,
 	TRACE_ENTRY();
 
 	if (vtt->tgtt->write_proc == NULL) {
-		res = -ENOSYS;
+		res = -ENOTSUPP;
 		goto out;
 	}
 
@@ -1559,7 +1559,7 @@ static ssize_t scst_proc_scsi_dev_handler_write(struct file *file,
 	TRACE_ENTRY();
 
 	if (dev_type->write_proc == NULL) {
-		res = -ENOSYS;
+		res = -ENOTSUPP;
 		goto out;
 	}
 

srpt/src/ib_srpt.c

@@ -4114,7 +4114,7 @@ static void srpt_add_one(struct ib_device *device)
 #endif
 
 	sdev->srq = use_srq ? ib_create_srq(sdev->pd, &srq_attr) :
-		ERR_PTR(-ENOSYS);
+		ERR_PTR(-ENOTSUPP);
 	if (IS_ERR(sdev->srq)) {
 		pr_debug("ib_create_srq() failed: %ld\n", PTR_ERR(sdev->srq));