diff mbox

[v2] sound/soc/fsl/fsl_dma.c: add missing of_node_put

Message ID 1314022961-27513-1-git-send-email-timur@freescale.com (mailing list archive)
State Accepted, archived
Headers show

Commit Message

Timur Tabi Aug. 22, 2011, 2:22 p.m. UTC
of_parse_phandle increments the reference count of np, so this should be
decremented before trying the next possibility.

Since we don't actually use np, we can decrement the reference count
immediately.

Reported-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Timur Tabi <timur@freescale.com>
---
 sound/soc/fsl/fsl_dma.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

Comments

Liam Girdwood Aug. 22, 2011, 8:05 p.m. UTC | #1
On 22/08/11 15:22, Timur Tabi wrote:
> of_parse_phandle increments the reference count of np, so this should be
> decremented before trying the next possibility.
> 
> Since we don't actually use np, we can decrement the reference count
> immediately.
> 
> Reported-by: Julia Lawall <julia@diku.dk>
> Signed-off-by: Timur Tabi <timur@freescale.com>

Acked-by: Liam Girdwood <lrg@ti.com>

> ---
>  sound/soc/fsl/fsl_dma.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
> index 6680c0b..b300f4b 100644
> --- a/sound/soc/fsl/fsl_dma.c
> +++ b/sound/soc/fsl/fsl_dma.c
> @@ -877,10 +877,12 @@ static struct device_node *find_ssi_node(struct device_node *dma_channel_np)
>  		 * assume that device_node pointers are a valid comparison.
>  		 */
>  		np = of_parse_phandle(ssi_np, "fsl,playback-dma", 0);
> +		of_node_put(np);
>  		if (np == dma_channel_np)
>  			return ssi_np;
>  
>  		np = of_parse_phandle(ssi_np, "fsl,capture-dma", 0);
> +		of_node_put(np);
>  		if (np == dma_channel_np)
>  			return ssi_np;
>  	}
Mark Brown Aug. 22, 2011, 10:27 p.m. UTC | #2
On Mon, Aug 22, 2011 at 09:22:41AM -0500, Timur Tabi wrote:
> of_parse_phandle increments the reference count of np, so this should be
> decremented before trying the next possibility.
> 
> Since we don't actually use np, we can decrement the reference count
> immediately.

Applied, thanks.
Mark Brown Aug. 22, 2011, 10:30 p.m. UTC | #3
On Mon, Aug 22, 2011 at 09:22:41AM -0500, Timur Tabi wrote:
> of_parse_phandle increments the reference count of np, so this should be
> decremented before trying the next possibility.
> 
> Since we don't actually use np, we can decrement the reference count
> immediately.

Applied, thanks.
diff mbox

Patch

diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
index 6680c0b..b300f4b 100644
--- a/sound/soc/fsl/fsl_dma.c
+++ b/sound/soc/fsl/fsl_dma.c
@@ -877,10 +877,12 @@  static struct device_node *find_ssi_node(struct device_node *dma_channel_np)
 		 * assume that device_node pointers are a valid comparison.
 		 */
 		np = of_parse_phandle(ssi_np, "fsl,playback-dma", 0);
+		of_node_put(np);
 		if (np == dma_channel_np)
 			return ssi_np;
 
 		np = of_parse_phandle(ssi_np, "fsl,capture-dma", 0);
+		of_node_put(np);
 		if (np == dma_channel_np)
 			return ssi_np;
 	}