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| author |   Mike Christie <michael.christie@oracle.com> | 2020-07-01 20:43:18 -0500 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2020-07-08 00:14:34 -0400 |
| commit | 3c006c7d23aac928279f7cbe83bbac4361255d53 (patch) | |
| tree | 18813c095e06d984d6ecee284ae5b8ff9d09b035 /drivers/target/target_core_xcopy.c | |
| parent | scsi: target: Check enforce_pr_isids during registration (diff) | |
| download | linux-dev-3c006c7d23aac928279f7cbe83bbac4361255d53.tar.xz linux-dev-3c006c7d23aac928279f7cbe83bbac4361255d53.zip | |
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 <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/target/target_core_xcopy.c | 11 |
1 files changed, 9 insertions, 2 deletions
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); + } } /* |