From: Dan Carpenter
Date: Sat, 1 Aug 2015 15:33:26 +0300
> "len" is a signed integer. We check that len is not negative, so it
> goes from zero to INT_MAX. PAGE_SIZE is unsigned long so the comparison
> is type promoted to unsigned long. ULONG_MAX - 4095 is a higher than
> INT_MAX so the condi
"len" is a signed integer. We check that len is not negative, so it
goes from zero to INT_MAX. PAGE_SIZE is unsigned long so the comparison
is type promoted to unsigned long. ULONG_MAX - 4095 is a higher than
INT_MAX so the condition can never be true.
I don't know if this is harmful but it see
