The caller assumes that "itnim" is NULL on error and non-NULL on
success but really "itnim" is uninitialized on error. This
function should just use normal error handling where it returns zero on
success and negative on failure.
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
Static checker stuff. Not tested.
I sent this originally in 2014 but it still seems to apply fine.
diff --git a/drivers/scsi/bfa/bfa_fcs.h b/drivers/scsi/bfa/bfa_fcs.h
index 42bcb97..af220e9 100644
--- a/drivers/scsi/bfa/bfa_fcs.h
+++ b/drivers/scsi/bfa/bfa_fcs.h
@@ -873,8 +873,8 @@ bfa_status_t bfa_fcb_rport_alloc(struct bfad_s *bfad,
/*
* itnim callbacks
*/
-void bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim,
- struct bfad_itnim_s **itnim_drv);
+int bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim,
+ struct bfad_itnim_s **itnim_drv);
void bfa_fcb_itnim_free(struct bfad_s *bfad,
struct bfad_itnim_s *itnim_drv);
void bfa_fcb_itnim_online(struct bfad_itnim_s *itnim_drv);
diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c
index 7223b00..31426ae 100644
--- a/drivers/scsi/bfa/bfad_im.c
+++ b/drivers/scsi/bfa/bfad_im.c
@@ -413,13 +413,13 @@ bfad_im_slave_destroy(struct scsi_device *sdev)
* BFA FCS itnim alloc callback, after successful PRLI
* Context: Interrupt
*/
-void
+int
bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim,
struct bfad_itnim_s **itnim_drv)
{
*itnim_drv = kzalloc(sizeof(struct bfad_itnim_s), GFP_ATOMIC);
if (*itnim_drv == NULL)
- return;
+ return -ENOMEM;
(*itnim_drv)->im = bfad->im;
*itnim = &(*itnim_drv)->fcs_itnim;
@@ -430,6 +430,7 @@ bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct
bfa_fcs_itnim_s **itnim,
*/
INIT_WORK(&(*itnim_drv)->itnim_work, bfad_im_itnim_work_handler);
bfad->bfad_flags |= BFAD_RPORT_ONLINE;
+ return 0;
}
/*
diff --git a/drivers/scsi/bfa/bfa_fcs_fcpim.c b/drivers/scsi/bfa/bfa_fcs_fcpim.c
index 6dc7926..829247e 100644
--- a/drivers/scsi/bfa/bfa_fcs_fcpim.c
+++ b/drivers/scsi/bfa/bfa_fcs_fcpim.c
@@ -587,12 +587,13 @@ bfa_fcs_itnim_create(struct bfa_fcs_rport_s *rport)
struct bfa_fcs_lport_s *port = rport->port;
struct bfa_fcs_itnim_s *itnim;
struct bfad_itnim_s *itnim_drv;
+ int ret;
/*
* call bfad to allocate the itnim
*/
- bfa_fcb_itnim_alloc(port->fcs->bfad, &itnim, &itnim_drv);
- if (itnim == NULL) {
+ ret = bfa_fcb_itnim_alloc(port->fcs->bfad, &itnim, &itnim_drv);
+ if (ret) {
bfa_trc(port->fcs, rport->pwwn);
return NULL;
}
--
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