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| author | Julia Lawall <julia@diku.dk> | 2009-02-08 22:43:19 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-02-10 17:15:19 +0100 |
| commit | e916141c6889e2a35869d7057ef1cc5e5a2e86eb (patch) | |
| tree | 594ed76b74ae67796cbb6d7d43336a98e9ee3fb3 /drivers/scsi | |
| parent | [SCSI] libiscsi: Fix scsi command timeout oops in iscsi_eh_timed_out (diff) | |
| download | linux-e916141c6889e2a35869d7057ef1cc5e5a2e86eb.tar.xz linux-e916141c6889e2a35869d7057ef1cc5e5a2e86eb.zip | |
[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>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_els.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index a8f30bdaff69..a7302480bc4a 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)); |