[PATCH] CLKDEV: Add helper routines to allocate and add clkdevs for given struct clk *

[s.hauer at pengutronix.de]

On Mon, Apr 16, 2012 at 10:46:09PM +0200, Domenico Andreoli wrote:
> On Mon, Apr 16, 2012 at 07:09:32PM +0530, viresh kumar wrote:
> > V2:
> > 
> > From: Russell King <rmk+kernel at arm.linux.org.uk>
> > CLKDEV: Add helper routines to allocate and add clkdevs for given struct clk *
> > 
> > With common clock framework, clks are allocated at runtime. Some of them require
> > clkdevs to be allocated and added in global clkdev list.
> > 
> > This patch introduces helper routines to:
> > 
> >  - allocate and add single clkdev for a single clk structure.
> >  - add multiple clkdevs for a single clk structure.
> > 
> > Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
> > Signed-off-by: Viresh Kumar <viresh.kumar at st.com>
> > ---
> > +struct clk_lookup * __init_refok
> > +clkdev_alloc(struct clk *clk, const char *con_id, const char *dev_fmt, ...)
> > +{
> > +	struct clk_lookup * cl;
> > +	va_list ap = NULL;
> 
> gcc complains because of this initialization:
> 
> drivers/clk/clkdev.c: In function 'clkdev_alloc':
> drivers/clk/clkdev.c:149:2: error: invalid initializer
> drivers/clk/clkdev.c: In function 'clk_register_single_clkdev':
> drivers/clk/clkdev.c:197:2: error: invalid initializer
> make[2]: *** [drivers/clk/clkdev.o] Error 1
> make[1]: *** [drivers/clk] Error 2
> 
> 
> so I finally tested it with this modification:
> 
> 	if (dev_fmt) {
> 		va_start(ap, dev_fmt);
> 		cl = clkdev_alloc_valist(clk, con_id, dev_fmt, ap);
> 		va_end(ap);
> 	} else
> 		cl = clkdev_alloc(clk, con_id, NULL);

Same here. The correct fix is simply not to initialize ap.

Sascha


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