Hi Andrew,
On Thu, Jan 10, 2013 at 09:29:15PM +0100, Andrew Lunn wrote:
> A NULL is a valid clk cookie, so we should not be tested with
> IS_ERR_NULL(). Replace it with IS_ERR().
>
> Signed-off-by: Andrew Lunn <and...@lunn.ch>
> ---
> drivers/mmc/host/mvsdio.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
> index de4c20b..d0050fa 100644
> --- a/drivers/mmc/host/mvsdio.c
> +++ b/drivers/mmc/host/mvsdio.c
> @@ -839,7 +839,7 @@ out:
> if (r)
> release_resource(r);
> if (mmc)
> - if (!IS_ERR_OR_NULL(host->clk)) {
> + if (!IS_ERR(host->clk)) {
> clk_disable_unprepare(host->clk);
> clk_put(host->clk);
> }
Hmm. I think this check was originally intended to go under "if
(host)" above and not here. Notice the indentation mismatch/missing
braces for "if (mmc)". My bad.
Additionally, host->clk == NULL is not necessarily the result of
clk_get() but it can also be NULL if the irq could not be assigned.
Leading to unbalanced clk calls in this case.
- Simon
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