[PATCH 1/9] macintosh/via-macii: Access autopoll_devs when inside lock

[Finn Thain]

The interrupt handler should be excluded when accessing the autopoll_devs
variable.

Fixes: d95fd5fce88f0 ("m68k: Mac II ADB fixes") # v5.0+
Tested-by: Stan Johnson <userm57 at yahoo.com>
Signed-off-by: Finn Thain <fthain at telegraphics.com.au>
---
 drivers/macintosh/via-macii.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/macintosh/via-macii.c b/drivers/macintosh/via-macii.c
index ac824d7b2dcfc..6aa903529570d 100644
--- a/drivers/macintosh/via-macii.c
+++ b/drivers/macintosh/via-macii.c
@@ -270,15 +270,12 @@ static int macii_autopoll(int devs)
 	unsigned long flags;
 	int err = 0;
 
+	local_irq_save(flags);
+
 	/* bit 1 == device 1, and so on. */
 	autopoll_devs = devs & 0xFFFE;
 
-	if (!autopoll_devs)
-		return 0;
-
-	local_irq_save(flags);
-
-	if (current_req == NULL) {
+	if (autopoll_devs && !current_req) {
 		/* Send a Talk Reg 0. The controller will repeatedly transmit
 		 * this as long as it is idle.
 		 */
-- 
2.26.2