LoongArch: Fix return value underflow in exception path

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commit e66d511fc9 upstream.

This patch fixes an underflow issue in the return value within the
exception path, specifically at .Llt8 when the remaining length is less
than 8 bytes.

Cc: stable@vger.kernel.org
Fixes: 8941e93ca5 ("LoongArch: Optimize memory ops (memset/memcpy/memmove)")
Reported-by: Weihao Li <liweihao@loongson.cn>
Signed-off-by: WANG Rui <wangrui@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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WANG Rui 2023-07-28 10:30:42 +08:00 • committed by Greg Kroah-Hartman

parent 453af7c2cc

commit a04cb0c408

2 changed files with 4 additions and 2 deletions

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arch/loongarch/lib/clear_user.S

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arch/loongarch/lib/copy_user.S

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