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um: return error from ioremap()

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Back a few years ago, ioremap() was added to UML so that we'd
not break the build for everything all the time. However, for
some reason, v1 of the patch got applied, rather than the v2
that returned NULL, which was discussed here:

https://lore.kernel.org/lkml/1495726955-27497-1-git-send-email-logang@deltatee.com/

Fix that now.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Johannes Berg 2020-12-17 13:15:56 +01:00 committed by Richard Weinberger
parent 94c41b3a7c
commit 1cdcfb4437
1 changed files with 1 additions and 1 deletions
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2
arch/um/include/asm/io.h
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@ -5,7 +5,7 @@
#define ioremap ioremap
static inline void __iomem *ioremap(phys_addr_t offset, size_t size)
{
return (void __iomem *)(unsigned long)offset;
return NULL;
}
#define iounmap iounmap