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um: remove dead code

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GCC 4.6's -Wunused-but-set-variable found some dead code.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Richard Weinberger 2011-07-25 17:12:55 -07:00 committed by Linus Torvalds
parent 39073db15b
commit f1c93e4946
3 changed files with 3 additions and 6 deletions
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3
arch/um/drivers/chan_kern.c
View File

@ -543,11 +543,10 @@ int parse_chan_pair(char *str, struct line *line, int device,
const struct chan_opts *opts, char **error_out) const struct chan_opts *opts, char **error_out)
{ {
struct list_head *chans = &line->chan_list; struct list_head *chans = &line->chan_list;
struct chan *new, *chan; struct chan *new;
char *in, *out; char *in, *out;
if (!list_empty(chans)) { if (!list_empty(chans)) {
chan = list_entry(chans->next, struct chan, list);
free_chan(chans, 0); free_chan(chans, 0);
INIT_LIST_HEAD(chans); INIT_LIST_HEAD(chans);
} }

3
arch/um/drivers/line.c
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@ -176,10 +176,9 @@ void line_flush_buffer(struct tty_struct *tty)
{ {
struct line *line = tty->driver_data; struct line *line = tty->driver_data;
unsigned long flags; unsigned long flags;
int err;
spin_lock_irqsave(&line->lock, flags); spin_lock_irqsave(&line->lock, flags);
err = flush_buffer(line); flush_buffer(line);
spin_unlock_irqrestore(&line->lock, flags); spin_unlock_irqrestore(&line->lock, flags);
} }

3
arch/um/kernel/reboot.c
View File

@ -20,9 +20,8 @@ static void kill_off_processes(void)
os_kill_ptraced_process(userspace_pid[0], 1); os_kill_ptraced_process(userspace_pid[0], 1);
else { else {
struct task_struct *p; struct task_struct *p;
int pid, me; int pid;
me = os_getpid();
for_each_process(p) { for_each_process(p) {
if (p->mm == NULL) if (p->mm == NULL)
continue; continue;