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Commit 3d9dd6ee authored by FUJITA Tomonori's avatar FUJITA Tomonori Committed by James Bottomley
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[SCSI] handle scsi_init_queue failure properly 



scsi_init_queue is expected to clean up allocated things when it
fails.

Signed-off-by: default avatarFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent b172b6e9

drivers/scsi/scsi_lib.c

+17 −1
Original line number Diff line number Diff line
@@ -1682,7 +1682,7 @@ int __init scsi_init_queue(void) 
					0, 0, NULL);

	if (!scsi_bidi_sdb_cache) {

		printk(KERN_ERR "SCSI: can't init scsi bidi sdb cache\n");

		return -ENOMEM;

		goto cleanup_io_context;

	}



	for (i = 0; i < SG_MEMPOOL_NR; i++) {
@@ -1694,6 +1694,7 @@ int __init scsi_init_queue(void) 
		if (!sgp->slab) {

			printk(KERN_ERR "SCSI: can't init sg slab %s\n",

					sgp->name);

			goto cleanup_bidi_sdb;

		}



		sgp->pool = mempool_create_slab_pool(SG_MEMPOOL_SIZE,
@@ -1701,10 +1702,25 @@ int __init scsi_init_queue(void) 
		if (!sgp->pool) {

			printk(KERN_ERR "SCSI: can't init sg mempool %s\n",

					sgp->name);

			goto cleanup_bidi_sdb;

		}

	}



	return 0;



cleanup_bidi_sdb:

	for (i = 0; i < SG_MEMPOOL_NR; i++) {

		struct scsi_host_sg_pool *sgp = scsi_sg_pools + i;

		if (sgp->pool)

			mempool_destroy(sgp->pool);

		if (sgp->slab)

			kmem_cache_destroy(sgp->slab);

	}

	kmem_cache_destroy(scsi_bidi_sdb_cache);

cleanup_io_context:

	kmem_cache_destroy(scsi_io_context_cache);



	return -ENOMEM;

}



void scsi_exit_queue(void)