diff options
Diffstat (limited to 'arch/um/drivers/null.c')
| -rw-r--r-- | arch/um/drivers/null.c | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/arch/um/drivers/null.c b/arch/um/drivers/null.c index 9016c68beee8..21ad3d7932b3 100644 --- a/arch/um/drivers/null.c +++ b/arch/um/drivers/null.c @@ -1,10 +1,11 @@ -/* - * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) +/* + * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com) * Licensed under the GPL */ -#include <stdlib.h> +#include <stddef.h> #include <errno.h> +#include <fcntl.h> #include "chan_user.h" #include "os.h" @@ -13,19 +14,23 @@ static int null_chan; static void *null_init(char *str, int device, const struct chan_opts *opts) { - return(&null_chan); + return &null_chan; } static int null_open(int input, int output, int primary, void *d, char **dev_out) { + int fd; + *dev_out = NULL; - return(os_open_file(DEV_NULL, of_rdwr(OPENFLAGS()), 0)); + + fd = open(DEV_NULL, O_RDWR); + return (fd < 0) ? -errno : fd; } static int null_read(int fd, char *c_out, void *unused) { - return(-ENODEV); + return -ENODEV; } static void null_free(void *data) @@ -44,14 +49,3 @@ const struct chan_ops null_ops = { .free = null_free, .winch = 0, }; - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ |