diff options
| author | Joel D. Diaz <joeldiaz@us.ibm.com> | 2012-10-10 10:36:11 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-11-27 08:59:34 +0400 |
| commit | afd5e34b2bb34881d3a789e62486814a49b47faa (patch) | |
| tree | e289c2ef0d8be9b007423e3c7eda3440e788092f | |
| parent | 500c152afbafba2adcb23bb2e37b7138eb003b7f (diff) | |
[SCSI] sd: Reshuffle init_sd to avoid crash
scsi_register_driver will register a prep_fn() function, which
in turn migh need to use the sd_cdp_pool for DIF.
Which hasn't been initialised at this point, leading to
a crash. So reshuffle the init_sd() and exit_sd() paths
to have the driver registered last.
Signed-off-by: Joel D. Diaz <joeldiaz@us.ibm.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| -rw-r--r-- | drivers/scsi/sd.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 352bc77b7c8..a45e12ac7e2 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -3116,10 +3116,6 @@ static int __init init_sd(void) if (err) goto err_out; - err = scsi_register_driver(&sd_template.gendrv); - if (err) - goto err_out_class; - sd_cdb_cache = kmem_cache_create("sd_ext_cdb", SD_EXT_CDB_SIZE, 0, 0, NULL); if (!sd_cdb_cache) { @@ -3133,8 +3129,15 @@ static int __init init_sd(void) goto err_out_cache; } + err = scsi_register_driver(&sd_template.gendrv); + if (err) + goto err_out_driver; + return 0; +err_out_driver: + mempool_destroy(sd_cdb_pool); + err_out_cache: kmem_cache_destroy(sd_cdb_cache); @@ -3157,10 +3160,10 @@ static void __exit exit_sd(void) SCSI_LOG_HLQUEUE(3, printk("exit_sd: exiting sd driver\n")); + scsi_unregister_driver(&sd_template.gendrv); mempool_destroy(sd_cdb_pool); kmem_cache_destroy(sd_cdb_cache); - scsi_unregister_driver(&sd_template.gendrv); class_unregister(&sd_disk_class); for (i = 0; i < SD_MAJORS; i++) |