diff mbox

[9/10] arch/arm/mach-omap2/clock.c: add missing clk_put

Message ID 1306948213-20767-9-git-send-email-julia@diku.dk (mailing list archive)
State Accepted
Commit bd5777626556bd72c2b87a31586dec4b22884e4d
Delegated to: Tony Lindgren
Headers show

Commit Message

Julia Lawall June 1, 2011, 5:10 p.m. UTC 
From: Julia Lawall <julia@diku.dk>

Add missing call to clk_put.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@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
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
 arch/arm/mach-omap2/clock.c |    1 +
 1 file changed, 1 insertion(+)


--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Comments

Paul Walmsley June 2, 2011, 9:26 p.m. UTC | #1 
On Wed, 1 Jun 2011, Julia Lawall wrote:

> From: Julia Lawall <julia@diku.dk>
> 
> Add missing call to clk_put.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @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
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>

Acked-by: Paul Walmsley <paul@pwsan.com>


- Paul
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Tony Lindgren July 1, 2011, 7:15 a.m. UTC | #2 
* Paul Walmsley <paul@pwsan.com> [110602 14:22]:
> On Wed, 1 Jun 2011, Julia Lawall wrote:
> 
> > From: Julia Lawall <julia@diku.dk>
> > 
> > Add missing call to clk_put.
> > 
> > A simplified version of the semantic match that finds this problem is as
> > follows: (http://coccinelle.lip6.fr/)
> > 
> > // <smpl>
> > @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
> > // </smpl>
> > 
> > Signed-off-by: Julia Lawall <julia@diku.dk>
> 
> Acked-by: Paul Walmsley <paul@pwsan.com>

Adding this into devel-fixes branch.

Tony
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 180299e..bf9c36c 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -453,6 +453,7 @@  int __init omap2_clk_switch_mpurate_at_boot(const char *mpurate_ck_name)
 	if (IS_ERR_VALUE(r)) {
 		WARN(1, "clock: %s: unable to set MPU rate to %d: %d\n",
 		     mpurate_ck->name, mpurate, r);
+		clk_put(mpurate_ck);
 		return -EINVAL;
 	}