staging: vme_user: remove okcount variable
authorDmitry Kalinkin <dmitry.kalinkin@gmail.com>
Fri, 26 Jun 2015 20:39:44 +0000 (23:39 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 15 Jul 2015 05:50:15 +0000 (22:50 -0700)
Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/vme/devices/vme_user.c

index 7ca943cf1b922f4801c56e710d470855ef07d909..b3e3c2d546a1e55166b62bad1ebe496bd71c5682 100644 (file)
@@ -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;