4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jason Yan yanaijie@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 yanaijie@huawei.com CC: John Garry john.garry@huawei.com CC: chenqilin chenqilin2@huawei.com CC: chenxiang chenxiang66@hisilicon.com Reviewed-by: Christoph Hellwig hch@lst.de Reviewed-by: Hannes Reinecke hare@suse.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@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;