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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-03-09 23:45:38 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-04-02 09:27:11 -0700 |
| commit | bf8109a3b01b5c64e0ec4b11fa020abca8d00223 (patch) | |
| tree | dc5b0af6470d37cd3870fcccd7d48ea3c85e2a0b | |
| parent | 6ee80c0330b0413b9daa9e2aa9142554de290bdc (diff) | |
| download | kernel_samsung_crespo-bf8109a3b01b5c64e0ec4b11fa020abca8d00223.zip kernel_samsung_crespo-bf8109a3b01b5c64e0ec4b11fa020abca8d00223.tar.gz kernel_samsung_crespo-bf8109a3b01b5c64e0ec4b11fa020abca8d00223.tar.bz2 | |
tcm_fc: Fix fc_exch memory leak in ft_send_resp_status
commit 031ed4d565b31880a4136bb7366bc89f5b1dba7d upstream.
This patch fixes a bug in tcm_fc where fc_exch memory from fc_exch_mgr->ep_pool
is currently being leaked by ft_send_resp_status() usage. Following current
code in ft_queue_status() response path, using lport->tt.seq_send() needs to be
followed by a lport->tt.exch_done() in order to release fc_exch memory back into
libfc_em kmem_cache.
ft_send_resp_status() code is currently used in pre submit se_cmd ft_send_work()
error exceptions, TM request setup exceptions, and main TM response callback
path in ft_queue_tm_resp(). This bugfix addresses the leak in these cases.
Cc: Mark D Rustad <mark.d.rustad@intel.com>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Robert Love <robert.w.love@intel.com>
Cc: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/target/tcm_fc/tfc_cmd.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index b2a1067..3c3fa84 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -371,10 +371,12 @@ static void ft_send_resp_status(struct fc_lport *lport, fc_fill_reply_hdr(fp, rx_fp, FC_RCTL_DD_CMD_STATUS, 0); sp = fr_seq(fp); - if (sp) + if (sp) { lport->tt.seq_send(lport, sp, fp); - else + lport->tt.exch_done(sp); + } else { lport->tt.frame_send(lport, fp); + } } /* |