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m68k: cmpxchg: Fix return value for default case in __arch_xchg()

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[ Upstream commit 21b9e722ad ]

The return value of __invalid_xchg_size() is assigned to tmp instead of
the return variable x. Assign it to x instead.

Fixes: 2501cf768e ("m68k: Fix xchg/cmpxchg to fail to link if given an inappropriate pointer")
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/20240702034116.140234-2-thorsten.blum@toblux.com
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Thorsten Blum 2024-07-02 05:41:17 +02:00 committed by Greg Kroah-Hartman
parent 13a71384ae
commit b8cdefdaa5
1 changed files with 1 additions and 1 deletions
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2
arch/m68k/include/asm/cmpxchg.h
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@ -32,7 +32,7 @@ static inline unsigned long __arch_xchg(unsigned long x, volatile void * ptr, in
x = tmp;
break;
default:
tmp = __invalid_xchg_size(x, ptr, size);
x = __invalid_xchg_size(x, ptr, size);
break;
}