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Message-ID: <CAHdPZaMYnMCygOa+mcUMq0vwJpW7W1PE9AqKPkNGEeN0u-bF6w@mail.gmail.com>
Date: Mon, 4 Jun 2012 17:07:02 +0530
From: "devendra.aaru" <devendra.aaru@...il.com>
To: Linus Walleij <linus.walleij@...aro.org>,
linux-kernel@...r.kernel.org
Cc: Devendra Naga <devendra.aaru@...il.com>
Subject: Re: [PATCH 1/2] pinctrl: free allocated pinctrl_map structure only
once and use kernel facilities for IMX_PMX_DUMP
Anybody Please??
On Sat, Jun 2, 2012 at 10:33 PM, Devendra Naga <devendra.aaru@...il.com> wrote:
> a) as we allocate the pinctrl_map structure at imx_dt_node_to_map at line 167, anyway
> if its an element, or a num_elements * (sizeof(type)) elements allocated to one single
> pointer must be freed only once.
>
> CASE. A)
>
> as new_map is not moved and allocated like,
>
> for (i = 0; i < MAX_ELEMS; i++) {
> new_map[i] = kmalloc(numelems * size, GFP_KERNEL);
> }
>
> its freed as
>
> for (i = 0; i < MAX_ELEMS; i++) {
> kfree(new_map[i]);
> }
>
> CASE. B)
> and its allocated like
> new_map = kmalloc(numelems * size, GFP_KERNEL);
>
> it just needs kfree not as case A's.
>
> b) use KERN_DEBUG facility for the IMX_PMX_DUMP macro.
>
> Signed-off-by: Devendra Naga <devendra.aaru@...il.com>
> ---
> drivers/pinctrl/pinctrl-imx.c | 23 +++++++++++------------
> 1 file changed, 11 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/pinctrl/pinctrl-imx.c b/drivers/pinctrl/pinctrl-imx.c
> index f6e7c67..553ed95 100644
> --- a/drivers/pinctrl/pinctrl-imx.c
> +++ b/drivers/pinctrl/pinctrl-imx.c
> @@ -27,16 +27,16 @@
> #include "core.h"
> #include "pinctrl-imx.h"
>
> -#define IMX_PMX_DUMP(info, p, m, c, n) \
> -{ \
> - int i, j; \
> - printk("Format: Pin Mux Config\n"); \
> - for (i = 0; i < n; i++) { \
> - j = p[i]; \
> - printk("%s %d 0x%lx\n", \
> - info->pins[j].name, \
> - m[i], c[i]); \
> - } \
> +#define IMX_PMX_DUMP(info, p, m, c, n) \
> +{ \
> + int i, j; \
> + printk(KERN_DEBUG "Format: Pin Mux Config\n"); \
> + for (i = 0; i < n; i++) { \
> + j = p[i]; \
> + printk(KERN_DEBUG "%s %d 0x%lx\n", \
> + info->pins[j].name, \
> + m[i], c[i]); \
> + } \
> }
>
> /* The bits in CONFIG cell defined in binding doc*/
> @@ -203,8 +203,7 @@ static void imx_dt_free_map(struct pinctrl_dev *pctldev,
> {
> int i;
>
> - for (i = 0; i < num_maps; i++)
> - kfree(map);
> + kfree(map);
> }
>
> static struct pinctrl_ops imx_pctrl_ops = {
> --
> 1.7.9.5
>
--
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