[PATCH] floppy: Avoid manual call of device_create_file()

From: Takashi Iwai
Date: Mon Feb 02 2015 - 11:08:59 EST


Use the static attribute groups assigned to the device instead of
calling device_create_file() after the device registration.

Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
drivers/block/floppy.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 56d46ffb08e1..a08cda955285 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4112,6 +4112,13 @@ static ssize_t floppy_cmos_show(struct device *dev,

static DEVICE_ATTR(cmos, S_IRUGO, floppy_cmos_show, NULL);

+static struct attribute *floppy_dev_attrs[] = {
+ &dev_attr_cmos.attr,
+ NULL
+};
+
+ATTRIBUTE_GROUPS(floppy_dev);
+
static void floppy_device_release(struct device *dev)
{
}
@@ -4324,16 +4331,12 @@ static int __init do_floppy_init(void)
floppy_device[drive].name = floppy_device_name;
floppy_device[drive].id = drive;
floppy_device[drive].dev.release = floppy_device_release;
+ floppy_device[drive].dev.groups = floppy_dev_groups;

err = platform_device_register(&floppy_device[drive]);
if (err)
goto out_remove_drives;

- err = device_create_file(&floppy_device[drive].dev,
- &dev_attr_cmos);
- if (err)
- goto out_unreg_platform_dev;
-
/* to be cleaned up... */
disks[drive]->private_data = (void *)(long)drive;
disks[drive]->flags |= GENHD_FL_REMOVABLE;
@@ -4343,13 +4346,10 @@ static int __init do_floppy_init(void)

return 0;

-out_unreg_platform_dev:
- platform_device_unregister(&floppy_device[drive]);
out_remove_drives:
while (drive--) {
if (floppy_available(drive)) {
del_gendisk(disks[drive]);
- device_remove_file(&floppy_device[drive].dev, &dev_attr_cmos);
platform_device_unregister(&floppy_device[drive]);
}
}
@@ -4594,7 +4594,6 @@ static void __exit floppy_module_exit(void)

if (floppy_available(drive)) {
del_gendisk(disks[drive]);
- device_remove_file(&floppy_device[drive].dev, &dev_attr_cmos);
platform_device_unregister(&floppy_device[drive]);
}
blk_cleanup_queue(disks[drive]->queue);
--
2.2.2

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