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scsi: libsas: fix memory leak in sas_smp_get_phy_events()

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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: 2908d778ab ("[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>
This commit is contained in:
Jason Yan 2018-01-04 21:04:31 +08:00 committed by Martin K. Petersen
parent f4d0ad1f27
commit 4a491b1ab1
1 changed files with 1 additions and 0 deletions
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1
drivers/scsi/libsas/sas_expander.c
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@ -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;