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Message-ID: <4CA73D26.7090109@bfs.de> Date: Sat, 02 Oct 2010 16:09:42 +0200 From: walter harms <wharms@....de> To: Julia Lawall <julia@...u.dk> CC: Chas Williams <chas@....nrl.navy.mil>, kernel-janitors@...r.kernel.org, linux-atm-general@...ts.sourceforge.net, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 4/4] drivers/atm/idt77252.c: Remove unnecessary error check Julia Lawall schrieb: > This code does not call deinit_card(card); in an error case, as done in > other error-handling code in the same function. But actually, the called > function init_sram can only return 0, so there is no need for the error > check at all. > did you set init_sram() to void ? re, wh > A simplified version of the sematic match that finds this problem is as > follows: (http://coccinelle.lip6.fr/) > > // <smpl> > @r exists@ > @r@ > statement S1,S2,S3; > constant C1,C2,C3; > @@ > > *if (...) > {... S1 return -C1;} > ... > *if (...) > {... when != S1 > return -C2;} > ... > *if (...) > {... S1 return -C3;} > // </smpl> > > Signed-off-by: Julia Lawall <julia@...u.dk> > > --- > drivers/atm/idt77252.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c > index 1679cbf..08ccde6 100644 > --- a/drivers/atm/idt77252.c > +++ b/drivers/atm/idt77252.c > @@ -3410,8 +3410,7 @@ init_card(struct atm_dev *dev) > > writel(readl(SAR_REG_CFG) | conf, SAR_REG_CFG); > > - if (init_sram(card) < 0) > - return -1; > + init_sram(card); > > /********************************************************************/ > /* A L L O C R A M A N D S E T V A R I O U S T H I N G S */ > > -- > To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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