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powerpc/sparse: Constify the address pointer in __get_user_nosleep()

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In __get_user_nosleep, we create an intermediate pointer for the
user address we're about to fetch. We currently don't tag this
pointer as const. Make it const, as we are simply dereferencing
it, and it's scope is limited to the __get_user_nosleep macro.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Daniel Axtens 2017-01-30 17:41:55 +11:00 committed by Michael Ellerman
parent d466f6c5ca
commit f2ca809059
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/include/asm/uaccess.h
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@ -286,7 +286,7 @@ do { \
({ \
long __gu_err; \
unsigned long __gu_val; \
__typeof__(*(ptr)) __user *__gu_addr = (ptr); \
const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
__chk_user_ptr(ptr); \
__get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
(x) = (__force __typeof__(*(ptr)))__gu_val; \