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authorBart Van Assche <bart.vanassche@wdc.com>2017-08-23 15:29:10 -0700
committerAl Viro <viro@zeniv.linux.org.uk>2017-08-31 17:32:39 -0400
commitf58e76c1c551c7577b25a6fe493d82f5214331b7 (patch)
treeb63fec187cfabb2afc18c97f35d667962df114f9 /include/linux/uaccess.h
parentddef7ed2b5cbafae692d1d580bb5a07808926a9c (diff)
downloadlwn-f58e76c1c551c7577b25a6fe493d82f5214331b7.tar.gz
lwn-f58e76c1c551c7577b25a6fe493d82f5214331b7.zip
<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 d597580d3737 ("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>
Diffstat (limited to 'include/linux/uaccess.h')
-rw-r--r--include/linux/uaccess.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index acdd6f915a8d..20ef8e6ec2db 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -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))