Fix race in SPI endTransaction

me-no-dev · me-no-dev · commit 2b6d47ac1782 · 2017-09-27T16:27:44.000+08:00
diff --git a/libraries/SPI/src/SPI.cpp b/libraries/SPI/src/SPI.cpp
@@ -127,8 +127,8 @@ void SPIClass::beginTransaction(SPISettings settings)
 void SPIClass::endTransaction()
 {
     if(_inTransaction){
-        spiEndTransaction(_spi);
         _inTransaction = false;
+        spiEndTransaction(_spi);
     }
 }
 

Original file line number	Diff line number	Diff line change
`@@ -127,8 +127,8 @@ void SPIClass::beginTransaction(SPISettings settings)`
`127`	`127`	`void SPIClass::endTransaction()`
`128`	`128`	`{`
`129`	`129`	`if(_inTransaction){`
`130`		`- spiEndTransaction(_spi);`
`131`	`130`	`_inTransaction = false;`
	`131`	`+ spiEndTransaction(_spi);`
`132`	`132`	`}`
`133`	`133`	`}`
`134`	`134`