Commit a49e4992 authored by Colin Ian King's avatar Colin Ian King Committed by Ben Hutchings

usb: misc: adutux: remove redundant error check on copy_to_user return code

commit 453785c6 upstream.

The 2nd check for a non-zero return from copy_to_user is redundant as
it is has already been made a few lines earlier.  This check was made
redundant because of previous fix to the copy_to_user error return
check.

Detected by CoverityScan, CID#114347 ("Logically Dead Code")

Fixes: 1865a9c3 ("USB: adutux: fix misuse of return value of copy_to_user()")
Signed-off-by: default avatarColin Ian King <colin.king@canonical.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
parent a8f1e91f
......@@ -389,10 +389,6 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count,
dev->secondary_head += (amount - i);
bytes_read += (amount - i);
bytes_to_read -= (amount - i);
if (i) {
retval = bytes_read ? bytes_read : -EFAULT;
goto exit;
}
} else {
/* we check the primary buffer */
spin_lock_irqsave (&dev->buflock, flags);
......
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