All of lore.kernel.org
 help / color / mirror / Atom feed
* device_create_file() and device_remove_file()
@ 2016-09-14 17:46 Matias Mucciolo
  0 siblings, 0 replies; only message in thread
From: Matias Mucciolo @ 2016-09-14 17:46 UTC (permalink / raw)
  To: kernelnewbies


Hi
im looking at the driver:
drivers/staging/olpc_dcon/olpc_dcon.c

(trying to clean up __ATTR with DEVICE_ATTR_RO/_RW)

line 663 creates sysfs files(in a for) :

......
rc = device_create_file(&dcon_device->dev, &dcon_device_files[i]);
if (rc) {
	dev_err(&dcon_device->dev, "Cannot create sysfs file\n");
	goto ecreate;
}
...

if it fails, then in the goto removes the created ones
with device_remove_file() and exits

the question i have is: 
if don't fails and the files are created ...
in that code i don't see any other device_remove_file() call
to remove the files when, for example, the module unload.

i thinking its because when its load and used by the device they can't
be unload ?? so they don't need to clean up those files ?
or i missing something ?

Thanks

-- 

Matias Mucciolo

Area de Infraestructura.
Piedras 737 C.A.B.A 
SUTEBA 

^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2016-09-14 17:46 UTC | newest]

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-09-14 17:46 device_create_file() and device_remove_file() Matias Mucciolo

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.