add a few more gcc warning flags and fix quite a few problems found by doing so

1 files changed, 4 insertions, 1 deletions

diff --git a/src/tests/parec-simple.c b/src/tests/parec-simple.c
index ea34a075..0312005d 100644
--- a/src/tests/parec-simple.c
+++ b/src/tests/parec-simple.c
@@ -47,7 +47,7 @@ static ssize_t loop_write(int fd, const void*data, size_t size) {
 
         ret += r;
         data = (const uint8_t*) data + r;
-        size -= r;
+        size -= (size_t) r;
     }
 
     return ret;
@@ -80,6 +80,9 @@ int main(int argc, char*argv[]) {
             goto finish;
         }
 
+        if (r == 0)
+            break;
+
         /* And write it to STDOUT */
         if ((r = loop_write(STDOUT_FILENO, buf, sizeof(buf))) <= 0) {
             fprintf(stderr, __FILE__": write() failed: %s\n", strerror(errno));