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Subject[PATCH 05/10] uml: code convention cleanup of a file
Date
From: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>

Fix coding conventions violations is arch/um/os-Linux/helper.c.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
---
arch/um/os-Linux/helper.c | 53 ++++++++++++++++++++++++---------------------
1 files changed, 28 insertions(+), 25 deletions(-)
diff --git a/arch/um/os-Linux/helper.c b/arch/um/os-Linux/helper.c
index f72c512..e887179 100644
--- a/arch/um/os-Linux/helper.c
+++ b/arch/um/os-Linux/helper.c
@@ -38,17 +38,17 @@ static int helper_child(void *arg)
char **argv = data->argv;
int errval;

- if(helper_pause){
+ if (helper_pause) {
signal(SIGHUP, helper_hup);
pause();
}
- if(data->pre_exec != NULL)
+ if (data->pre_exec != NULL)
(*data->pre_exec)(data->pre_data);
errval = execvp_noalloc(data->buf, argv[0], argv);
printk("helper_child - execvp of '%s' failed - errno = %d\n", argv[0], -errval);
os_write_file(data->fd, &errval, sizeof(errval));
kill(os_getpid(), SIGKILL);
- return(0);
+ return 0;
}

/* Returns either the pid of the child process we run or -E* on failure.
@@ -60,20 +60,21 @@ int run_helper(void (*pre_exec)(void *),
unsigned long stack, sp;
int pid, fds[2], ret, n;

- if((stack_out != NULL) && (*stack_out != 0))
+ if ((stack_out != NULL) && (*stack_out != 0))
stack = *stack_out;
- else stack = alloc_stack(0, __cant_sleep());
- if(stack == 0)
+ else
+ stack = alloc_stack(0, __cant_sleep());
+ if (stack == 0)
return -ENOMEM;

ret = os_pipe(fds, 1, 0);
- if(ret < 0){
+ if (ret < 0) {
printk("run_helper : pipe failed, ret = %d\n", -ret);
goto out_free;
}

ret = os_set_exec_close(fds[1], 1);
- if(ret < 0){
+ if (ret < 0) {
printk("run_helper : setting FD_CLOEXEC failed, ret = %d\n",
-ret);
goto out_close;
@@ -86,7 +87,7 @@ int run_helper(void (*pre_exec)(void *),
data.fd = fds[1];
data.buf = __cant_sleep() ? um_kmalloc_atomic(PATH_MAX) : um_kmalloc(PATH_MAX);
pid = clone(helper_child, (void *) sp, CLONE_VM | SIGCHLD, &data);
- if(pid < 0){
+ if (pid < 0) {
ret = -errno;
printk("run_helper : clone failed, errno = %d\n", errno);
goto out_free2;
@@ -98,10 +99,10 @@ int run_helper(void (*pre_exec)(void *),
/* Read the errno value from the child, if the exec failed, or get 0 if
* the exec succeeded because the pipe fd was set as close-on-exec. */
n = os_read_file(fds[0], &ret, sizeof(ret));
- if(n == 0)
+ if (n == 0) {
ret = pid;
- else {
- if(n < 0){
+ } else {
+ if (n < 0) {
printk("run_helper : read on pipe failed, ret = %d\n",
-n);
ret = n;
@@ -117,10 +118,11 @@ out_close:
close(fds[1]);
close(fds[0]);
out_free:
- if(stack_out == NULL)
+ if (stack_out == NULL)
free_stack(stack, 0);
- else *stack_out = stack;
- return(ret);
+ else
+ *stack_out = stack;
+ return ret;
}

int run_helper_thread(int (*proc)(void *), void *arg, unsigned int flags,
@@ -130,31 +132,32 @@ int run_helper_thread(int (*proc)(void *
int pid, status, err;

stack = alloc_stack(stack_order, __cant_sleep());
- if(stack == 0) return(-ENOMEM);
+ if (stack == 0)
+ return -ENOMEM;

sp = stack + (page_size() << stack_order) - sizeof(void *);
pid = clone(proc, (void *) sp, flags | SIGCHLD, arg);
- if(pid < 0){
+ if (pid < 0) {
err = -errno;
printk("run_helper_thread : clone failed, errno = %d\n",
errno);
return err;
}
- if(stack_out == NULL){
+ if (stack_out == NULL) {
CATCH_EINTR(pid = waitpid(pid, &status, 0));
- if(pid < 0){
+ if (pid < 0) {
err = -errno;
printk("run_helper_thread - wait failed, errno = %d\n",
errno);
pid = err;
}
- if(!WIFEXITED(status) || (WEXITSTATUS(status) != 0))
+ if (!WIFEXITED(status) || (WEXITSTATUS(status) != 0))
printk("run_helper_thread - thread returned status "
"0x%x\n", status);
free_stack(stack, stack_order);
- }
- else *stack_out = stack;
- return(pid);
+ } else
+ *stack_out = stack;
+ return pid;
}

int helper_wait(int pid)
@@ -162,9 +165,9 @@ int helper_wait(int pid)
int ret;

CATCH_EINTR(ret = waitpid(pid, NULL, WNOHANG));
- if(ret < 0){
+ if (ret < 0) {
ret = -errno;
printk("helper_wait : waitpid failed, errno = %d\n", errno);
}
- return(ret);
+ return ret;
}
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