Commit aa00edc1 authored May 27, 2016 by Linus Torvalds

make IS_ERR_VALUE() complain about non-pointer-sized arguments

Now that the allmodconfig x86-64 build is clean wrt IS_ERR_VALUE() uses
on integers, add a cast to a pointer and back to the argument, so that
any new mis-uses of IS_ERR_VALUE() will cause warnings like

warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]

so that we don't re-introduce any bogus uses.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 5d22fc25

include/linux/err.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -18,7 +18,7 @@

		#ifndef __ASSEMBLY__

		#define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO)
		#define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO)

		static inline void * __must_check ERR_PTR(long error)
		{