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Subject[resend] [patch] [SCSI] bfa: dereferencing freed memory in bfad_im_probe()
If bfad_thread_workq(bfad) was not BFA_STATUS_OK then we freed "im"
and then dereferenced it.

I did a little clean up because it seemed nicer to return directly
instead of doing a superfluous goto. I looked at other functions in
this file and it seems like returning directly is standard.

Signed-off-by: Dan Carpenter <error27@gmail.com>
---
I sent this last July and asked about it again in November but I never
heard back. It still applies fine with 2 lines of fuzz.

diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c
index 0131238..7f7cca0 100644
--- a/drivers/scsi/bfa/bfad_im.c
+++ b/drivers/scsi/bfa/bfad_im.c
@@ -685,25 +685,21 @@ bfa_status_t
bfad_im_probe(struct bfad_s *bfad)
{
struct bfad_im_s *im;
- bfa_status_t rc = BFA_STATUS_OK;

im = kzalloc(sizeof(struct bfad_im_s), GFP_KERNEL);
- if (im == NULL) {
- rc = BFA_STATUS_ENOMEM;
- goto ext;
- }
+ if (im == NULL)
+ return BFA_STATUS_ENOMEM;

bfad->im = im;
im->bfad = bfad;

if (bfad_thread_workq(bfad) != BFA_STATUS_OK) {
kfree(im);
- rc = BFA_STATUS_FAILED;
+ return BFA_STATUS_FAILED;
}

INIT_WORK(&im->aen_im_notify_work, bfad_aen_im_notify_handler);
-ext:
- return rc;
+ return BFA_STATUS_OK;
}

void

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