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uml: helper.c warning corrections

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Fix this warning:

  arch/um/os-Linux/helper.c: In function `helper_child':
  arch/um/os-Linux/helper.c:38:7: warning: ignoring return value of `write', declared with attribute warn_unused_result

[richard@nod.at: happens only with -D_FORTIFY_SOURCE=2]
Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com>
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:
Vitaliy Ivanov 2011-07-25 17:12:50 -07:00 committed by Linus Torvalds
parent 7a99ae7c57
commit 2fdf213092
1 changed files with 2 additions and 2 deletions
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4
arch/um/os-Linux/helper.c
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@ -28,14 +28,14 @@ static int helper_child(void *arg)
{ {
struct helper_data *data = arg; struct helper_data *data = arg;
char **argv = data->argv; char **argv = data->argv;
int err; int err, ret;
if (data->pre_exec != NULL) if (data->pre_exec != NULL)
(*data->pre_exec)(data->pre_data); (*data->pre_exec)(data->pre_data);
err = execvp_noalloc(data->buf, argv[0], argv); err = execvp_noalloc(data->buf, argv[0], argv);
/* If the exec succeeds, we don't get here */ /* If the exec succeeds, we don't get here */
write(data->fd, &err, sizeof(err)); CATCH_EINTR(ret = write(data->fd, &err, sizeof(err)));
return 0; return 0;
} }