[PATCH 2/2] ARM: SAMSUNG: Add check for NULL in clock interface

[Thomas Abraham]

On 6 September 2012 19:55, Chander Kashyap <chander.kashyap at linaro.org> wrote:
> The clock instance parameter in Samsung clock interface is not being checked
> for NULL pointers. Add checks for NULL pointers.
>
> Signed-off-by: Chander Kashyap <chander.kashyap at linaro.org>
> ---
>  arch/arm/plat-samsung/clock.c |    8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm/plat-samsung/clock.c b/arch/arm/plat-samsung/clock.c
> index 65c5eca..7938fbc 100644
> --- a/arch/arm/plat-samsung/clock.c
> +++ b/arch/arm/plat-samsung/clock.c
> @@ -119,7 +119,7 @@ void clk_disable(struct clk *clk)
>
>  unsigned long clk_get_rate(struct clk *clk)
>  {
> -       if (IS_ERR(clk))
> +       if (IS_ERR_OR_NULL(clk))
>                 return 0;
>
>         if (clk->rate != 0)
> @@ -136,7 +136,7 @@ unsigned long clk_get_rate(struct clk *clk)
>
>  long clk_round_rate(struct clk *clk, unsigned long rate)
>  {
> -       if (!IS_ERR(clk) && clk->ops && clk->ops->round_rate)
> +       if (!IS_ERR_OR_NULL(clk) && clk->ops && clk->ops->round_rate)
>                 return (clk->ops->round_rate)(clk, rate);
>
>         return rate;
> @@ -146,7 +146,7 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
>  {
>         int ret;
>
> -       if (IS_ERR(clk))
> +       if (IS_ERR_OR_NULL(clk))
>                 return -EINVAL;
>
>         /* We do not default just do a clk->rate = rate as
> @@ -175,7 +175,7 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
>  {
>         int ret = 0;
>
> -       if (IS_ERR(clk))
> +       if (IS_ERR_OR_NULL(clk) || IS_ERR_OR_NULL(parent))
>                 return -EINVAL;
>
>         spin_lock(&clocks_lock);
> --
> 1.7.9.5

Acked-by: Thomas Abraham <thomas.abraham at linaro.org>