[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 <dan.carpenter@oracle.com>
Acked-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c
index 1ac09af..2eebf8d 100644 (file)
--- a/drivers/scsi/bfa/bfad_im.c
+++ b/drivers/scsi/bfa/bfad_im.c
@@ -687,25 +687,21 @@ 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