4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Jason Yan <yanai...@huawei.com> [ Upstream commit 4a491b1ab11ca0556d2fda1ff1301e862a2d44c4 ] We've got a memory leak with the following producer: while true; do cat /sys/class/sas_phy/phy-1:0:12/invalid_dword_count >/dev/null; done The buffer req is allocated and not freed after we return. Fix it. Fixes: 2908d778ab3e ("[SCSI] aic94xx: new driver") Signed-off-by: Jason Yan <yanai...@huawei.com> CC: John Garry <john.ga...@huawei.com> CC: chenqilin <chenqil...@huawei.com> CC: chenxiang <chenxian...@hisilicon.com> Reviewed-by: Christoph Hellwig <h...@lst.de> Reviewed-by: Hannes Reinecke <h...@suse.com> Signed-off-by: Martin K. Petersen <martin.peter...@oracle.com> Signed-off-by: Sasha Levin <alexander.le...@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/scsi/libsas/sas_expander.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -684,6 +684,7 @@ int sas_smp_get_phy_events(struct sas_ph phy->phy_reset_problem_count = scsi_to_u32(&resp[24]); out: + kfree(req); kfree(resp); return res;