codal_app/mphalport: Fix bit-wise logic in mp_hal_stdio_poll.

dpgeorge · dpgeorge · commit 967c0765c88f · 2020-12-14T15:54:56.000+11:00
Signed-off-by: Damien George &lt;damien@micropython.org&gt;
diff --git a/src/codal_app/mphalport.cpp b/src/codal_app/mphalport.cpp
@@ -54,12 +54,12 @@ void mp_hal_set_interrupt_char(int c) {
 
 uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags) {
     uintptr_t ret = 0;
-    if (poll_flags && MP_STREAM_POLL_RD) {
+    if (poll_flags & MP_STREAM_POLL_RD) {
         if (uBit.serial.isReadable()) {
             ret |= MP_STREAM_POLL_RD;
         }
     }
-    if (poll_flags && MP_STREAM_POLL_WR) {
+    if (poll_flags & MP_STREAM_POLL_WR) {
         if (uBit.serial.isWriteable()) {
             ret |= MP_STREAM_POLL_WR;
         }

Original file line number	Diff line number	Diff line change
`@@ -54,12 +54,12 @@ void mp_hal_set_interrupt_char(int c) {`
`54`	`54`
`55`	`55`	`uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags) {`
`56`	`56`	`uintptr_t ret = 0;`
`57`		`- if (poll_flags && MP_STREAM_POLL_RD) {`
	`57`	`+ if (poll_flags & MP_STREAM_POLL_RD) {`
`58`	`58`	`if (uBit.serial.isReadable()) {`
`59`	`59`	`ret \|= MP_STREAM_POLL_RD;`
`60`	`60`	`}`
`61`	`61`	`}`
`62`		`- if (poll_flags && MP_STREAM_POLL_WR) {`
	`62`	`+ if (poll_flags & MP_STREAM_POLL_WR) {`
`63`	`63`	`if (uBit.serial.isWriteable()) {`
`64`	`64`	`ret \|= MP_STREAM_POLL_WR;`
`65`	`65`	`}`