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[1/3] scsi: libsas: fix memory leak in sas_smp_get_phy_events()

Message ID 20180102121510.12570-2-yanaijie@huawei.com (mailing list archive)
State Superseded
Headers show

Commit Message

Jason Yan Jan. 2, 2018, 12:15 p.m. UTC
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.

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>
---
 drivers/scsi/libsas/sas_expander.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index 3183d63..4b0c67f 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -695,6 +695,7 @@  int sas_smp_get_phy_events(struct sas_phy *phy)
 	phy->phy_reset_problem_count = scsi_to_u32(&resp[24]);
 
  out:
+	kfree(req);
 	kfree(resp);
 	return res;