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scsi: libfc: Free skb in fc_disc_gpn_id_resp() for valid cases

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[ Upstream commit ec007ef40a ]

In fc_disc_gpn_id_resp(), skb is supposed to get freed in all cases except
for PTR_ERR. However, in some cases it didn't.

This fix is to call fc_frame_free(fp) before function returns.

Link: https://lore.kernel.org/r/20200729081824.30996-2-jhasan@marvell.com
Reviewed-by: Girish Basrur <gbasrur@marvell.com>
Reviewed-by: Santosh Vernekar <svernekar@marvell.com>
Reviewed-by: Saurav Kashyap <skashyap@marvell.com>
Reviewed-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Javed Hasan
2020-07-29 01:18:23 -07:00
committed by Greg Kroah-Hartman
parent 582cf66047
commit bb930d05fd
1 changed files with 9 additions and 3 deletions
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12
drivers/scsi/libfc/fc_disc.c
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@@ -581,8 +581,12 @@ static void fc_disc_gpn_id_resp(struct fc_seq *sp, struct fc_frame *fp,
if (PTR_ERR(fp) == -FC_EX_CLOSED)
goto out;
if (IS_ERR(fp))
goto redisc;
if (IS_ERR(fp)) {
mutex_lock(&disc->disc_mutex);
fc_disc_restart(disc);
mutex_unlock(&disc->disc_mutex);
goto out;
}
cp = fc_frame_payload_get(fp, sizeof(*cp));
if (!cp)
@@ -609,7 +613,7 @@ static void fc_disc_gpn_id_resp(struct fc_seq *sp, struct fc_frame *fp,
new_rdata->disc_id = disc->disc_id;
fc_rport_login(new_rdata);
}
goto out;
goto free_fp;
}
rdata->disc_id = disc->disc_id;
mutex_unlock(&rdata->rp_mutex);
@@ -626,6 +630,8 @@ redisc:
fc_disc_restart(disc);
mutex_unlock(&disc->disc_mutex);
}
free_fp:
fc_frame_free(fp);
out:
kref_put(&rdata->kref, fc_rport_destroy);
if (!IS_ERR(fp))