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authorJulia Lawall <julia@diku.dk>2009-02-08 22:43:19 +0100
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-02-10 11:15:19 -0500
commite916141c6889e2a35869d7057ef1cc5e5a2e86eb (patch)
tree594ed76b74ae67796cbb6d7d43336a98e9ee3fb3
parent308cec14e6710b4d5b70e9778ce117be8371735d (diff)
[SCSI] lpfc: introduce missing kfree
Error handling code following a kmalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,l; position p1,p2; expression *ptr != NULL; @@ ( if ((x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...)) == NULL) S | x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S ) <... when != x when != if (...) { <+...x...+> } x->f = E ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
-rw-r--r--drivers/scsi/lpfc/lpfc_els.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index a8f30bd..a730248 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -5258,6 +5258,7 @@ lpfc_send_els_event(struct lpfc_vport *vport,
sizeof(struct lpfc_name));
break;
default:
+ kfree(els_data);
return;
}
memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));