Checking for image[minor].resource != NULL is not needed since all
resources are allocated before device is created.
image[minor].users accounting is deleted because it's not being used.
Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@xxxxxxxxx>
Cc: Igor Alekseev <igor.alekseev@xxxxxxx>
---
drivers/staging/vme/devices/vme_user.c | 44 ----------------------------------
1 file changed, 44 deletions(-)
diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c
index 2493847..ce4aacf 100644
--- a/drivers/staging/vme/devices/vme_user.c
+++ b/drivers/staging/vme/devices/vme_user.c
@@ -102,7 +102,6 @@ struct image_desc {
struct mutex mutex; /* Mutex for locking image */
struct device *device; /* Sysfs device */
struct vme_resource *resource; /* VME resource */
- int users; /* Number of current users */
int mmap_count; /* Number of current mmap's */
};
static struct image_desc image[VME_DEVS];
@@ -125,46 +124,6 @@ struct vme_user_vma_priv {
};
-static int vme_user_open(struct inode *inode, struct file *file)
-{
- int err;
- unsigned int minor = MINOR(inode->i_rdev);
-
- mutex_lock(&image[minor].mutex);
- /* Allow device to be opened if a resource is needed and allocated. */
- if (minor < CONTROL_MINOR && image[minor].resource == NULL) {
- pr_err("No resources allocated for device\n");
- err = -EINVAL;
- goto err_res;
- }
-
- /* Increment user count */
- image[minor].users++;
-
- mutex_unlock(&image[minor].mutex);
-
- return 0;
-
-err_res:
- mutex_unlock(&image[minor].mutex);
-
- return err;
-}
-
-static int vme_user_release(struct inode *inode, struct file *file)
-{
- unsigned int minor = MINOR(inode->i_rdev);
-
- mutex_lock(&image[minor].mutex);
-
- /* Decrement user count */
- image[minor].users--;
-
- mutex_unlock(&image[minor].mutex);
-
- return 0;
-}
-
/*
* We are going ot alloc a page during init per window for small transfers.
* Small transfers will go VME -> buffer -> user space. Larger (more than a
@@ -775,8 +734,6 @@ static int vme_user_mmap(struct file *file, struct vm_area_struct *vma)
}
static const struct file_operations vme_user_fops = {
- .open = vme_user_open,
- .release = vme_user_release,
.read = vme_user_read,
.write = vme_user_write,
.llseek = vme_user_llseek,
@@ -849,7 +806,6 @@ static int vme_user_probe(struct vme_dev *vdev)
mutex_init(&image[i].mutex);
image[i].device = NULL;
image[i].resource = NULL;
- image[i].users = 0;
}
/* Assign major and minor numbers for the driver */
--
1.8.3.1
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