[MIPS] RTLX: Don't use volatile; it's fragile. (9e346820) · Commits · e / devices / android_kernel_xiaomi_markw

arch/mips/kernel/rtlx.c

+16 −5

Original line number	Diff line number	Diff line
		@@ -146,7 +146,7 @@ static void stopping(int vpe)

		int rtlx_open(int index, int can_sleep)
		{
		volatile struct rtlx_info **p;
		struct rtlx_info **p;
		struct rtlx_channel *chan;
		enum rtlx_state state;
		int ret = 0;
		@@ -179,13 +179,24 @@ int rtlx_open(int index, int can_sleep)
		}
		}

		smp_rmb();
		if (*p == NULL) {
		if (can_sleep) {
		__wait_event_interruptible(channel_wqs[index].lx_queue,
		*p != NULL,
		ret);
		if (ret)
		DEFINE_WAIT(wait);

		for (;;) {
		prepare_to_wait(&channel_wqs[index].lx_queue, &wait, TASK_INTERRUPTIBLE);
		smp_rmb();
		if (*p != NULL)
		break;
		if (!signal_pending(current)) {
		schedule();
		continue;
		}
		ret = -ERESTARTSYS;
		goto out_fail;
		}
		finish_wait(&channel_wqs[index].lx_queue, &wait);
		} else {
		printk(" *vpe_get_shared is NULL. "
		"Has an SP program been loaded?\n");