[PATCH] spi: tegra: don't treat NULL clk as an error

On Mon, Jan 10, 2011 at 01:58:12PM -0700, Grant Likely wrote:

On Mon, Jan 10, 2011 at 4:05 AM, Jamie Iles [off-list ref] wrote:

quoted

Some platforms have been known to return NULL from clk_get() if they
support only a single struct clk. ?Whilst tegra doesn't do this, make
the drivers consistent with others.

Cc: Erik Gilling <redacted>
Signed-off-by: Jamie Iles <redacted>

Hi James,

If NULL does get returned, say due to a future change to the clock
code, then this change causes the driver to oops.  I'm not going to
apply this patch.

Please apply it - the clock API just defines struct clk as a cookie
where errors are IS_ERR/PTR_ERR.  Other values must be considered by
drivers as perfectly valid, including NULL.