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| author | Javed Hasan <jhasan@marvell.com> | 2020-07-29 01:18:23 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-26 10:27:09 +0200 |
| commit | 49aae8e6f90f33858d286d93795c29a7e49b3989 (patch) | |
| tree | 2cf4ffc3e77423b3e4788efb21dc2c82a16b06d6 | |
| parent | 6156e6259c3d707fbafbedb017f334f5e19bf214 (diff) | |
| download | linux-stable-49aae8e6f90f33858d286d93795c29a7e49b3989.tar.gz linux-stable-49aae8e6f90f33858d286d93795c29a7e49b3989.tar.bz2 linux-stable-49aae8e6f90f33858d286d93795c29a7e49b3989.zip | |
scsi: libfc: Free skb in fc_disc_gpn_id_resp() for valid cases
[ Upstream commit ec007ef40abb6a164d148b0dc19789a7a2de2cc8 ]
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>
| -rw-r--r-- | drivers/scsi/libfc/fc_disc.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c index 880a9068ca12..ef06af4e3611 100644 --- a/drivers/scsi/libfc/fc_disc.c +++ b/drivers/scsi/libfc/fc_disc.c @@ -595,8 +595,12 @@ static void fc_disc_gpn_id_resp(struct fc_seq *sp, struct fc_frame *fp, mutex_lock(&disc->disc_mutex); 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) @@ -621,7 +625,7 @@ static void fc_disc_gpn_id_resp(struct fc_seq *sp, struct fc_frame *fp, new_rdata->disc_id = disc->disc_id; lport->tt.rport_login(new_rdata); } - goto out; + goto free_fp; } rdata->disc_id = disc->disc_id; lport->tt.rport_login(rdata); @@ -635,6 +639,8 @@ static void fc_disc_gpn_id_resp(struct fc_seq *sp, struct fc_frame *fp, redisc: fc_disc_restart(disc); } +free_fp: + fc_frame_free(fp); out: mutex_unlock(&disc->disc_mutex); kref_put(&rdata->kref, lport->tt.rport_destroy); |