Messages in this thread Patch in this message | | | From | Namhyung Kim <> | Subject | [PATCH] add __user markup in copy_user_handle_tail() | Date | Sat, 14 Aug 2010 01:06:44 +0900 |
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__get/put_user_nocheck() requires 2nd arg should be a user pointer but was missing __user markup. Add it.
Signed-off-by: Namhyung Kim <namhyung@gmail.com> --- arch/x86/lib/usercopy_64.c | 9 ++++++--- 1 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c index b7c2849..84b0c1b 100644 --- a/arch/x86/lib/usercopy_64.c +++ b/arch/x86/lib/usercopy_64.c @@ -170,14 +170,17 @@ copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest) unsigned zero_len; for (; len; --len) { - if (__get_user_nocheck(c, from++, sizeof(char))) + if (__get_user_nocheck(c, (u8 __user __force *) from++, + sizeof(char))) break; - if (__put_user_nocheck(c, to++, sizeof(char))) + if (__put_user_nocheck(c, (u8 __user __force *) to++, + sizeof(char))) break; } for (c = 0, zero_len = len; zerorest && zero_len; --zero_len) - if (__put_user_nocheck(c, to++, sizeof(char))) + if (__put_user_nocheck(c, (u8 __user __force *) to++, + sizeof(char))) break; return len; } -- 1.7.0.4
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