support cheap chinese blue pill boards, make usb dfu compatible with dfuse

1 files changed, 4 insertions, 8 deletions

diff --git a/app/ring.c b/app/ring.c
index e3a6209..26bba3a 100644
--- a/app/ring.c
+++ b/app/ring.c
@@ -6,9 +6,8 @@ ring_next (ring_t *r, size_t p)
 {
   p++;
 
-  if (p >= r->size) {
+  if (p >= r->size)
     p -= r->size;
-  }
 
   return p;
 }
@@ -27,9 +26,8 @@ ring_write_byte (ring_t *r, uint8_t c)
 {
   size_t n = ring_next (r, r->write);
 
-  if (n == r->read) {
+  if (n == r->read)
     return -1;
-  }
 
   r->data[r->write] = c;
   r->write = n;
@@ -46,9 +44,8 @@ ring_read_byte (ring_t *r, uint8_t *c)
 {
   size_t n = ring_next (r, r->read);
 
-  if (r->read == r->write) {
+  if (r->read == r->write)
     return -1;
-  }
 
   *c = r->data[r->read];
   r->read = n;
@@ -59,9 +56,8 @@ int
 ring_write (ring_t *r, uint8_t *buf, size_t len)
 {
   while (len--) {
-    if (ring_write_byte (r, * (buf++))) {
+    if (ring_write_byte (r, * (buf++)))
       return -1;
-    }
   }
 
   return 0;