From acfa922c5a00eca0abac0e2b6d6666c606c27345 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Thu, 25 Dec 2008 13:39:30 +0100 Subject: [S390] s390: Remove redundant test The loop above the modified code only terminates when rc is a valid pointer. A simplified version of the semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // @r exists@ local idexpression x; expression E; position p1,p2; @@ if (x@p1 == NULL || ...) { ... when forall return ...; } ... when != \(x=E\|x--\|x++\|--x\|++x\|x-=E\|x+=E\|x|=E\|x&=E\|&x\) ( x@p2 == NULL | x@p2 != NULL ) // another path to the test that is not through p1? @s exists@ local idexpression r.x; position r.p1,r.p2; @@ ... when != x@p1 ( x@p2 == NULL | x@p2 != NULL ) @fix depends on !s@ position r.p1,r.p2; expression x,E; statement S1,S2; @@ ( - if ((x@p2 != NULL) || ...) S1 | - if ((x@p2 == NULL) && ...) S1 | - BUG_ON(x@p2 == NULL); ) // Signed-off-by: Julia Lawall Signed-off-by: Martin Schwidefsky --- drivers/s390/net/qeth_core_main.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/s390/net') diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 3dc752c29c73..bacd58c5061f 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -2335,7 +2335,6 @@ static int qeth_init_input_buffer(struct qeth_card *card, * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off * buffers */ - BUG_ON(!pool_entry); buf->pool_entry = pool_entry; for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { -- cgit v1.2.2