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parport: daisy: avoid hardcoded name

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The daisy device name is hardcoded, define it in the header file and
use it in the code.

Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Link: https://lore.kernel.org/r/20191016144540.18810-1-sudipm.mukherjee@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sudip Mukherjee 2019-10-16 15:45:37 +01:00 committed by Greg Kroah-Hartman
parent 45a2d64696
commit c059d57996
2 changed files with 2 additions and 1 deletions
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2
drivers/parport/probe.c
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@ -257,7 +257,7 @@ static ssize_t parport_read_device_id (struct parport *port, char *buffer,
ssize_t parport_device_id (int devnum, char *buffer, size_t count)
{
ssize_t retval = -ENXIO;
struct pardevice *dev = parport_open (devnum, "Device ID probe");
struct pardevice *dev = parport_open(devnum, daisy_dev_name);
if (!dev)
return -ENXIO;

1
include/linux/parport.h
View file

@ -460,6 +460,7 @@ extern size_t parport_ieee1284_epp_read_addr (struct parport *,
void *, size_t, int);
/* IEEE1284.3 functions */
#define daisy_dev_name "Device ID probe"
extern int parport_daisy_init (struct parport *port);
extern void parport_daisy_fini (struct parport *port);
extern struct pardevice *parport_open (int devnum, const char *name);