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<linux/uaccess.h>: Fix copy_in_user() declaration 

copy_in_user() copies data from user-space address @from to user-
space address @to. Hence declare both @from and @to as user-space
pointers.

Fixes: commit d597580d37 ("generic ...copy_..._user primitives")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
hifive-unleashed-5.1
Bart Van Assche 2017-08-23 15:29:10 -07:00 committed by Al Viro
parent ddef7ed2b5
commit f58e76c1c5
1 changed files with 1 additions and 1 deletions
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2
include/linux/uaccess.h
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@ -156,7 +156,7 @@ copy_to_user(void __user *to, const void *from, unsigned long n)
}
#ifdef CONFIG_COMPAT
static __always_inline unsigned long __must_check
copy_in_user(void __user *to, const void *from, unsigned long n)
copy_in_user(void __user *to, const void __user *from, unsigned long n)
{
might_fault();
if (access_ok(VERIFY_WRITE, to, n) && access_ok(VERIFY_READ, from, n))