[PATCH 2/7] usb: fsl_udc_core: check return value of create_proc_read_entry()

[Vasiliy Kulikov]

On Sat, Jul 31, 2010 at 21:17 +0200, Dan Carpenter wrote:
> On Sat, Jul 31, 2010 at 09:38:20PM +0400, Kulikov Vasiliy wrote:
> > create_proc_read_entry() may fail, if so return -ENOMEM.
> > 
> 
> It can fail, but also we return NULL if procfs is disabled.  I haven't
> looked at it very carefully, would this patch break the module if procfs
> was disabled?
Probably you are right, but many drivers in tree compare return value
with NULL. Some of them interpret this as error, some of them simply
call pr_warn("Hmm, I cannot create file in proc, strange..."). Maybe
there is more simplier way to check it without #ifdefs?

> 
> The same applies to the similar patches in this set.
> 
> regards,
> dan carpenter
> 
>