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Staging: hv: mousevsc: Get rid of the usage of the ext field in struct hv_device 

Get rid of the usage of the ext field in struct hv_device for the mouse driver.
We do this by using the newly introduced functions to set and and get driver
specific data.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
K. Y. Srinivasan 2011-09-13 10:59:50 -07:00 committed by Greg Kroah-Hartman
parent 2ddd5e5fb3
commit 80e623887e
1 changed files with 9 additions and 9 deletions
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18
drivers/staging/hv/hv_mouse.c
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@ -196,7 +196,7 @@ static struct mousevsc_dev *alloc_input_device(struct hv_device *device)
atomic_cmpxchg(&input_dev->ref_count, 0, 2);
input_dev->device = device;
device->ext = input_dev;
hv_set_drvdata(device, input_dev);
return input_dev;
}
@ -214,7 +214,7 @@ static struct mousevsc_dev *get_input_device(struct hv_device *device)
{
struct mousevsc_dev *input_dev;
input_dev = (struct mousevsc_dev *)device->ext;
input_dev = hv_get_drvdata(device);
/*
* FIXME
@ -240,7 +240,7 @@ static struct mousevsc_dev *must_get_input_device(struct hv_device *device)
{
struct mousevsc_dev *input_dev;
input_dev = (struct mousevsc_dev *)device->ext;
input_dev = hv_get_drvdata(device);
if (input_dev && atomic_read(&input_dev->ref_count))
atomic_inc(&input_dev->ref_count);
@ -254,7 +254,7 @@ static void put_input_device(struct hv_device *device)
{
struct mousevsc_dev *input_dev;
input_dev = (struct mousevsc_dev *)device->ext;
input_dev = hv_get_drvdata(device);
atomic_dec(&input_dev->ref_count);
}
@ -266,7 +266,7 @@ static struct mousevsc_dev *release_input_device(struct hv_device *device)
{
struct mousevsc_dev *input_dev;
input_dev = (struct mousevsc_dev *)device->ext;
input_dev = hv_get_drvdata(device);
/* Busy wait until the ref drop to 2, then set it to 1 */
while (atomic_cmpxchg(&input_dev->ref_count, 2, 1) != 2)
@ -282,13 +282,13 @@ static struct mousevsc_dev *final_release_input_device(struct hv_device *device)
{
struct mousevsc_dev *input_dev;
input_dev = (struct mousevsc_dev *)device->ext;
input_dev = hv_get_drvdata(device);
/* Busy wait until the ref drop to 1, then set it to 0 */
while (atomic_cmpxchg(&input_dev->ref_count, 1, 0) != 1)
udelay(100);
device->ext = NULL;
hv_set_drvdata(device, NULL);
return input_dev;
}
@ -790,7 +790,7 @@ static int mousevsc_on_device_remove(struct hv_device *device)
int ret = 0;
pr_info("disabling input device (%p)...",
device->ext);
hv_get_drvdata(device));
input_dev = release_input_device(device);
@ -808,7 +808,7 @@ static int mousevsc_on_device_remove(struct hv_device *device)
udelay(100);
}
pr_info("removing input device (%p)...", device->ext);
pr_info("removing input device (%p)...", hv_get_drvdata(device));
input_dev = final_release_input_device(device);