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>
{
struct helper_data *data = arg;
char **argv = data->argv;
- int err;
+ int err, ret;
if (data->pre_exec != NULL)
(*data->pre_exec)(data->pre_data);
err = execvp_noalloc(data->buf, argv[0], argv);
/* 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;
}