[Qemu-trivial] [PATCH 1/3] os-posix: change tab to space avoid violating coding style

[arei.gonglei]

From: Gonglei <address@hidden>

Cc: Eric Blake <address@hidden>
Signed-off-by: Gonglei <address@hidden>
---
 os-posix.c | 79 +++++++++++++++++++++++++++++++++-----------------------------
 1 file changed, 42 insertions(+), 37 deletions(-)

diff --git a/os-posix.c b/os-posix.c
index cb2a7f7..f0564ef 100644
--- a/os-posix.c
+++ b/os-posix.c
@@ -204,45 +204,49 @@ static void change_root(void)
 void os_daemonize(void)
 {
     if (daemonize) {
-       pid_t pid;
+        pid_t pid;
 
-       if (pipe(fds) == -1)
-           exit(1);
+        if (pipe(fds) == -1) {
+            exit(1);
+        }
 
-       pid = fork();
-       if (pid > 0) {
-           uint8_t status;
-           ssize_t len;
+        pid = fork();
+        if (pid > 0) {
+            uint8_t status;
+            ssize_t len;
 
-           close(fds[1]);
+            close(fds[1]);
 
-       again:
+        again:
             len = read(fds[0], &status, 1);
-            if (len == -1 && (errno == EINTR))
+            if (len == -1 && (errno == EINTR)) {
                 goto again;
-
-            if (len != 1)
+            }
+            if (len != 1) {
                 exit(1);
+            }
             else if (status == 1) {
                 fprintf(stderr, "Could not acquire pidfile: %s\n", 
strerror(errno));
                 exit(1);
-            } else
+            } else {
                 exit(0);
-       } else if (pid < 0)
-            exit(1);
-
-       close(fds[0]);
-       qemu_set_cloexec(fds[1]);
+            }
+            } else if (pid < 0) {
+                exit(1);
+            }
 
-       setsid();
+        close(fds[0]);
+        qemu_set_cloexec(fds[1]);
 
-       pid = fork();
-       if (pid > 0)
-           exit(0);
-       else if (pid < 0)
-           exit(1);
+        setsid();
 
-       umask(027);
+        pid = fork();
+        if (pid > 0) {
+            exit(0);
+        } else if (pid < 0) {
+            exit(1);
+        }
+        umask(027);
 
         signal(SIGTSTP, SIG_IGN);
         signal(SIGTTOU, SIG_IGN);
@@ -255,24 +259,25 @@ void os_setup_post(void)
     int fd = 0;
 
     if (daemonize) {
-       uint8_t status = 0;
-       ssize_t len;
+        uint8_t status = 0;
+        ssize_t len;
 
     again1:
-       len = write(fds[1], &status, 1);
-       if (len == -1 && (errno == EINTR))
-           goto again1;
-
-       if (len != 1)
-           exit(1);
-
+        len = write(fds[1], &status, 1);
+        if (len == -1 && (errno == EINTR)) {
+            goto again1;
+        }
+        if (len != 1) {
+            exit(1);
+        }
         if (chdir("/")) {
             perror("not able to chdir to /");
             exit(1);
         }
-       TFR(fd = qemu_open("/dev/null", O_RDWR));
-       if (fd == -1)
-           exit(1);
+        TFR(fd = qemu_open("/dev/null", O_RDWR));
+        if (fd == -1) {
+            exit(1);
+        }
     }
 
     change_root();
-- 
1.7.12.4