Messages in this thread Patch in this message | | | Date | Tue, 3 Aug 2010 23:33:03 +0200 (CEST) | From | Julia Lawall <> | Subject | [PATCH 2/9] drivers/scsi/qla2xxx/qla_init.c: Drop unnecessary null test |
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From: Julia Lawall <julia@diku.dk>
list_for_each_entry binds its first argument to a non-null value, and thus any null test on the value of that argument is superfluous.
The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/)
// <smpl> @@ iterator I; expression x,E; @@
I(x,...) { <... - (x != NULL) && E ...> } // </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
--- drivers/scsi/qla2xxx/qla_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index d863ed2..9c6af9c 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -3796,7 +3796,7 @@ qla2x00_update_fcports(scsi_qla_host_t *base_vha) /* Go with deferred removal of rport references. */ list_for_each_entry_safe(vha, tvp, &base_vha->hw->vp_list, list) list_for_each_entry(fcport, &vha->vp_fcports, list) - if (fcport && fcport->drport && + if (fcport->drport && atomic_read(&fcport->state) != FCS_UNCONFIGURED) qla2x00_rport_del(fcport); }
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