ath9k: Use atomic operations
The 'sc_flags' variable is being used in a number of places
with no locking whatsoever. This patch converts the usage
of sc_flags to atomic ops.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index c134dda..2831258 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -205,10 +205,10 @@
common->disable_ani = !!disable_ani;
if (disable_ani) {
- sc->sc_flags &= ~SC_OP_ANI_RUN;
+ clear_bit(SC_OP_ANI_RUN, &sc->sc_flags);
del_timer_sync(&common->ani.timer);
} else {
- sc->sc_flags |= SC_OP_ANI_RUN;
+ set_bit(SC_OP_ANI_RUN, &sc->sc_flags);
ath_start_ani(common);
}
@@ -1321,7 +1321,7 @@
u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
u8 nread;
- if (sc->sc_flags & SC_OP_INVALID)
+ if (test_bit(SC_OP_INVALID, &sc->sc_flags))
return -EAGAIN;
buf = vmalloc(size);