fix check errors

examples/blinky.rs

@@ -12,14 +12,12 @@ use cortex_m_rt::entry;
 #[entry]
 fn main() -> ! {
     if let Some(mut p) = pac::Peripherals::take() {
-        let mut led = cortex_m::interrupt::free(|cs| {
-            let mut rcc = p.RCC.configure().sysclk(8.mhz()).freeze(&mut p.FLASH);
+        let mut rcc = p.RCC.configure().sysclk(8.mhz()).freeze(&mut p.FLASH);
 
-            let gpioa = p.GPIOA.split(&mut rcc);
+        let gpioa = p.GPIOA.split(&mut rcc);
 
-            // (Re-)configure PA1 as output
-            gpioa.pa1.into_push_pull_output(cs)
-        });
+        // (Re-)configure PA1 as output
+        let mut led = cortex_m::interrupt::free(|cs| gpioa.pa1.into_push_pull_output(cs));
 
         loop {
             // Turn PA1 on a million times in a row

examples/blinky_delay.rs

@@ -18,9 +18,7 @@ fn main() -> ! {
         let gpioa = p.GPIOA.split(&mut rcc);
 
         // (Re-)configure PA1 as output
-        let mut led = cortex_m::interrupt::free(move |cs| {
-            gpioa.pa1.into_push_pull_output(cs);
-        });
+        let mut led = cortex_m::interrupt::free(move |cs| gpioa.pa1.into_push_pull_output(cs));
 
         // Get delay provider
         let mut delay = Delay::new(cp.SYST, &rcc);

examples/dac.rs

@@ -23,11 +23,11 @@ enum Direction {
 fn main() -> ! {
     if let (Some(mut dp), Some(_cp)) = (pac::Peripherals::take(), cortex_m::Peripherals::take()) {
         let mut rcc = dp.RCC.configure().sysclk(8.mhz()).freeze(&mut dp.FLASH);
+        let gpioa = dp.GPIOA.split(&mut rcc);
 
-        let mut dac = cortex_m::interrupt::free(move |cs| {
-            let gpioa = dp.GPIOA.split(&mut rcc);
-            dac(dp.DAC, gpioa.pa4.into_analog(cs), &mut rcc)
-        });
+        let pa4 = cortex_m::interrupt::free(move |cs| gpioa.pa4.into_analog(cs));
+
+        let mut dac = dac(dp.DAC, pa4, &mut rcc);
 
         dac.enable();
 

examples/serial_spi_bridge.rs

@@ -34,9 +34,9 @@ fn main() -> ! {
         let mut flash = p.FLASH;
         let mut rcc = p.RCC.configure().freeze(&mut flash);
 
-        let (sck, miso, mosi, tx, rx) = cortex_m::interrupt::free(move |cs| {
-            let gpioa = p.GPIOA.split(&mut rcc);
+        let gpioa = p.GPIOA.split(&mut rcc);
 
+        let (sck, miso, mosi, tx, rx) = cortex_m::interrupt::free(move |cs| {
             (
                 // SPI pins
                 gpioa.pa5.into_alternate_af0(cs),