From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Hilman Date: Wed, 01 Jun 2011 19:49:24 +0000 Subject: Re: [PATCH 7/10] drivers/net/davinci_emac.c: add missing clk_put Message-Id: <1306957764.26236.37.camel@vence> List-Id: References: <1306948213-20767-7-git-send-email-julia@diku.dk> In-Reply-To: <1306948213-20767-7-git-send-email-julia@diku.dk> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Julia Lawall Cc: "David S. Miller" , kernel-janitors@vger.kernel.org, Cyril Chemparathy , Sriramakrishnan A G , Stefan Weil , netdev@vger.kernel.org, linux-kernel@vger.kernel.org On Wed, 2011-06-01 at 19:10 +0200, Julia Lawall wrote: > From: Julia Lawall > > Go to existing error handling code at the end of the function that calls > clk_put. > > A simplified version of the semantic match that finds this problem is as > follows: (http://coccinelle.lip6.fr/) > > // > @r exists@ > expression e1,e2; > statement S; > @@ > > e1 = clk_get@p1(...); > ... when != e1 = e2 > when != clk_put(e1) > when any > if (...) { ... when != clk_put(e1) > when != if (...) { ... clk_put(e1) ... } > * return@p3 ...; > } else S > // > > Signed-off-by: Julia Lawall Acked-by: Kevin Hilman