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[PATCH] ipmi: avoid atomic_inc in exit function

This causes a link failure on ARM in certain configurations,
when we reference each atomic operation from .alt.smp.init in
order to patch out atomics on non-SMP systems:

`.exit.text' referenced in section `.alt.smp.init' of drivers/char/ipmi/ipmi_msghandler.o: defined in discarded section `.exit.text' of drivers/char/ipmi/ipmi_msghandler.o

In this case, we can trivially replace the atomic_inc() with
an atomic_set() that has the same effect and does not require
a fixup.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
 drivers/char/ipmi/ipmi_msghandler.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index e8ba67834746..c48198eef510 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -5164,7 +5164,7 @@ static void __exit cleanup_ipmi(void)
 		 * avoids problems with race conditions removing the timer
 		 * here.
-		atomic_inc(&stop_operation);
+		atomic_set(&stop_operation, 1);
 		initialized = false;