diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2017-12-30 00:12:28 +0300 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-12-30 00:12:28 +0300 |
| commit | 14544d7690f674ce2b7aa9dc6531c244cc861d19 (patch) | |
| tree | ccae0ed95da033b82a88017884ea984e93dd75bf /drivers/staging/vme | |
| parent | 3d46d7108dd3ff8b1d477bc2b7b061b12690e83c (diff) | |
| download | linux-14544d7690f674ce2b7aa9dc6531c244cc861d19.tar.xz | |
vme_user: don't use __copy_..._user()
Saving access_ok() is not worth the trouble; yes, the callers of ->read()
and ->write() will have done the right checks, but it's much too long
(and varied) call chains to rely upon.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/staging/vme')
| -rw-r--r-- | drivers/staging/vme/devices/vme_user.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c index a3d4610fbdbe..4c8c6fa0a79f 100644 --- a/drivers/staging/vme/devices/vme_user.c +++ b/drivers/staging/vme/devices/vme_user.c @@ -134,7 +134,7 @@ static ssize_t resource_to_user(int minor, char __user *buf, size_t count, if (copied < 0) return (int)copied; - if (__copy_to_user(buf, image[minor].kern_buf, (unsigned long)copied)) + if (copy_to_user(buf, image[minor].kern_buf, (unsigned long)copied)) return -EFAULT; return copied; @@ -146,7 +146,7 @@ static ssize_t resource_from_user(unsigned int minor, const char __user *buf, if (count > image[minor].size_buf) count = image[minor].size_buf; - if (__copy_from_user(image[minor].kern_buf, buf, (unsigned long)count)) + if (copy_from_user(image[minor].kern_buf, buf, (unsigned long)count)) return -EFAULT; return vme_master_write(image[minor].resource, image[minor].kern_buf, @@ -159,7 +159,7 @@ static ssize_t buffer_to_user(unsigned int minor, char __user *buf, void *image_ptr; image_ptr = image[minor].kern_buf + *ppos; - if (__copy_to_user(buf, image_ptr, (unsigned long)count)) + if (copy_to_user(buf, image_ptr, (unsigned long)count)) return -EFAULT; return count; @@ -171,7 +171,7 @@ static ssize_t buffer_from_user(unsigned int minor, const char __user *buf, void *image_ptr; image_ptr = image[minor].kern_buf + *ppos; - if (__copy_from_user(image_ptr, buf, (unsigned long)count)) + if (copy_from_user(image_ptr, buf, (unsigned long)count)) return -EFAULT; return count; |