From a5254dbb17dd22999f808e646780c32858a3eafa Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 27 Jun 2012 11:59:58 +0300 Subject: [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 Acked-by: Krishna Gudipati Signed-off-by: James Bottomley --- drivers/scsi/bfa/bfad_im.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index 1ac09afe35ee..2eebf8d4d58b 100644 --- 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