From 3c006c7d23aac928279f7cbe83bbac4361255d53 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 1 Jul 2020 20:43:18 -0500 Subject: scsi: target: Fix xcopy sess release leak transport_init_session can allocate memory via percpu_ref_init, and target_xcopy_release_pt never frees it. This adds a transport_uninit_session function to handle cleanup of resources allocated in the init function. Link: https://lore.kernel.org/r/1593654203-12442-3-git-send-email-michael.christie@oracle.com Signed-off-by: Mike Christie Signed-off-by: Martin K. Petersen --- drivers/target/target_core_xcopy.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'drivers/target/target_core_xcopy.c') diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c index 0d00ccbeb050..44e15d7fb2f0 100644 --- a/drivers/target/target_core_xcopy.c +++ b/drivers/target/target_core_xcopy.c @@ -474,7 +474,7 @@ int target_xcopy_setup_pt(void) memset(&xcopy_pt_sess, 0, sizeof(struct se_session)); ret = transport_init_session(&xcopy_pt_sess); if (ret < 0) - return ret; + goto destroy_wq; xcopy_pt_nacl.se_tpg = &xcopy_pt_tpg; xcopy_pt_nacl.nacl_sess = &xcopy_pt_sess; @@ -483,12 +483,19 @@ int target_xcopy_setup_pt(void) xcopy_pt_sess.se_node_acl = &xcopy_pt_nacl; return 0; + +destroy_wq: + destroy_workqueue(xcopy_wq); + xcopy_wq = NULL; + return ret; } void target_xcopy_release_pt(void) { - if (xcopy_wq) + if (xcopy_wq) { destroy_workqueue(xcopy_wq); + transport_uninit_session(&xcopy_pt_sess); + } } /* -- cgit v1.2.3