In ldsem_cmpxchg a pointer to unsigned long is passed to atomic_long_cmpxchg(), which expects a pointer to atomic_long_t.
In preparation for making the atomic_long_* APIs type safe, add a cast before passing the value to atomic_long_cmpxchg(). Similar is already done in ldsem_atomic_update() when it calls atomic_long_add_return(). Signed-off-by: Mark Rutland <[email protected]> Cc: Boqun Feng <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Will Deacon <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Jiri Slaby <[email protected]> --- drivers/tty/tty_ldsem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/tty_ldsem.c b/drivers/tty/tty_ldsem.c index 37a91b3df980..5f8aef97973f 100644 --- a/drivers/tty/tty_ldsem.c +++ b/drivers/tty/tty_ldsem.c @@ -86,7 +86,7 @@ static inline long ldsem_atomic_update(long delta, struct ld_semaphore *sem) */ static inline int ldsem_cmpxchg(long *old, long new, struct ld_semaphore *sem) { - long tmp = atomic_long_cmpxchg(&sem->count, *old, new); + long tmp = atomic_long_cmpxchg((atomic_long_t *)&sem->count, *old, new); if (tmp == *old) { *old = new; return 1; -- 2.11.0
