diff options
| author | Markos Chandras <markos.chandras@imgtec.com> | 2015-03-03 18:48:48 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-05-13 05:14:21 -0700 |
| commit | 44e6ee09bec252201891304cff339fb5bcfe4fc5 (patch) | |
| tree | 54d07386e19b14fa983cc21d3a6894f6fac7d05d | |
| parent | a521000f016321b61a2f610135cfbfa6166c79e1 (diff) | |
MIPS: asm: spinlock: Fix addiu instruction for R10000_LLSC_WAR case
Commit 518222161d4a2d3f3b2700098563b62383f83878 upstream.
Commit 5753762cbd1c("MIPS: asm: spinlock: Replace "sub" instruction
with "addiu") replaced the "sub" instruction with addiu but it did
not update the immediate value in the R10000_LLSC_WAR case.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Fixes: 5753762cbd1c("MIPS: asm: spinlock: Replace "sub" instruction with "addiu"")
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9385/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/mips/include/asm/spinlock.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h index b4548690ade9..1fca2e0793dc 100644 --- a/arch/mips/include/asm/spinlock.h +++ b/arch/mips/include/asm/spinlock.h @@ -263,7 +263,7 @@ static inline void arch_read_unlock(arch_rwlock_t *rw) if (R10000_LLSC_WAR) { __asm__ __volatile__( "1: ll %1, %2 # arch_read_unlock \n" - " addiu %1, 1 \n" + " addiu %1, -1 \n" " sc %1, %0 \n" " beqzl %1, 1b \n" : "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp) |