diff options
| author | Johannes Thumshirn <jthumshirn@suse.de> | 2015-07-08 18:24:01 +0300 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-08-26 17:45:25 +0300 |
| commit | 2d3a5d215e24d9bfb822ae82c6c2c5d333be076d (patch) | |
| tree | 88a843a1b0f4972b39f830a9f45b9c7e04791dda /drivers/scsi | |
| parent | da0dc9fb4e6b0ad5a947c27a3c48985f6a2377eb (diff) | |
| download | linux-2d3a5d215e24d9bfb822ae82c6c2c5d333be076d.tar.xz | |
st: Destroy st_index_idr on module exit
Destroy st_index_idr on module exit, reclaiming the allocated memory.
This was detected by the following semantic patch (written by Luis Rodriguez
<mcgrof@suse.com>)
<SmPL>
@ defines_module_init @
declarer name module_init, module_exit;
declarer name DEFINE_IDR;
identifier init;
@@
module_init(init);
@ defines_module_exit @
identifier exit;
@@
module_exit(exit);
@ declares_idr depends on defines_module_init && defines_module_exit @
identifier idr;
@@
DEFINE_IDR(idr);
@ on_exit_calls_destroy depends on declares_idr && defines_module_exit @
identifier declares_idr.idr, defines_module_exit.exit;
@@
exit(void)
{
...
idr_destroy(&idr);
...
}
@ missing_module_idr_destroy depends on declares_idr && defines_module_exit && !on_exit_calls_destroy @
identifier declares_idr.idr, defines_module_exit.exit;
@@
exit(void)
{
...
+idr_destroy(&idr);
}
</SmPL>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Kai Mäkisara <kai.makisara@kolumbus.fi>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/st.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 9cf3272daa69..b37b9b00c4b4 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -4419,6 +4419,7 @@ static void __exit exit_st(void) unregister_chrdev_region(MKDEV(SCSI_TAPE_MAJOR, 0), ST_MAX_TAPE_ENTRIES); class_unregister(&st_sysfs_class); + idr_destroy(&st_index_idr); printk(KERN_INFO "st: Unloaded.\n"); } |