staging: vme_user: remove okcount variable
Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Родитель
18f8bee206
Коммит
32491f561b
|
@ -182,7 +182,6 @@ static ssize_t vme_user_read(struct file *file, char __user *buf, size_t count,
|
|||
unsigned int minor = MINOR(file_inode(file)->i_rdev);
|
||||
ssize_t retval;
|
||||
size_t image_size;
|
||||
size_t okcount;
|
||||
|
||||
if (minor == CONTROL_MINOR)
|
||||
return 0;
|
||||
|
@ -200,16 +199,14 @@ static ssize_t vme_user_read(struct file *file, char __user *buf, size_t count,
|
|||
|
||||
/* Ensure not reading past end of the image */
|
||||
if (*ppos + count > image_size)
|
||||
okcount = image_size - *ppos;
|
||||
else
|
||||
okcount = count;
|
||||
count = image_size - *ppos;
|
||||
|
||||
switch (type[minor]) {
|
||||
case MASTER_MINOR:
|
||||
retval = resource_to_user(minor, buf, okcount, ppos);
|
||||
retval = resource_to_user(minor, buf, count, ppos);
|
||||
break;
|
||||
case SLAVE_MINOR:
|
||||
retval = buffer_to_user(minor, buf, okcount, ppos);
|
||||
retval = buffer_to_user(minor, buf, count, ppos);
|
||||
break;
|
||||
default:
|
||||
retval = -EINVAL;
|
||||
|
@ -228,7 +225,6 @@ static ssize_t vme_user_write(struct file *file, const char __user *buf,
|
|||
unsigned int minor = MINOR(file_inode(file)->i_rdev);
|
||||
ssize_t retval;
|
||||
size_t image_size;
|
||||
size_t okcount;
|
||||
|
||||
if (minor == CONTROL_MINOR)
|
||||
return 0;
|
||||
|
@ -245,16 +241,14 @@ static ssize_t vme_user_write(struct file *file, const char __user *buf,
|
|||
|
||||
/* Ensure not reading past end of the image */
|
||||
if (*ppos + count > image_size)
|
||||
okcount = image_size - *ppos;
|
||||
else
|
||||
okcount = count;
|
||||
count = image_size - *ppos;
|
||||
|
||||
switch (type[minor]) {
|
||||
case MASTER_MINOR:
|
||||
retval = resource_from_user(minor, buf, okcount, ppos);
|
||||
retval = resource_from_user(minor, buf, count, ppos);
|
||||
break;
|
||||
case SLAVE_MINOR:
|
||||
retval = buffer_from_user(minor, buf, okcount, ppos);
|
||||
retval = buffer_from_user(minor, buf, count, ppos);
|
||||
break;
|
||||
default:
|
||||
retval = -EINVAL;
|
||||
|
|
Загрузка…
Ссылка в новой задаче