Re: [PATCH] powerpc: 512x: Fix mpc5121_clk_get()

From: Richard Weinberger
Date: Mon Apr 09 2012 - 09:06:25 EST


Am 26.03.2012 21:01, schrieb Richard Weinberger:
> If try_module_get() fails, mpc5121_clk_get() might return
> a wrong clock.
>
> Signed-off-by: Richard Weinberger <richard@xxxxxx>
> ---
> arch/powerpc/platforms/512x/clock.c | 6 ++++--
> 1 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/platforms/512x/clock.c b/arch/powerpc/platforms/512x/clock.c
> index 1d8700f..9f771e0 100644
> --- a/arch/powerpc/platforms/512x/clock.c
> +++ b/arch/powerpc/platforms/512x/clock.c
> @@ -54,14 +54,16 @@ static DEFINE_MUTEX(clocks_mutex);
> static struct clk *mpc5121_clk_get(struct device *dev, const char *id)
> {
> struct clk *p, *clk = ERR_PTR(-ENOENT);
> - int dev_match = 0;
> - int id_match = 0;
> + int dev_match;
> + int id_match;
>
> if (dev == NULL || id == NULL)
> return clk;
>
> mutex_lock(&clocks_mutex);
> list_for_each_entry(p, &clocks, node) {
> + dev_match = id_match = 0;
> +
> if (dev == p->dev)
> dev_match++;
> if (strcmp(id, p->name) == 0)

*ping*

Thanks,
//richard

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