diff options
Diffstat (limited to 'arch/um/drivers/chan_user.c')
| -rw-r--r-- | arch/um/drivers/chan_user.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c index 77557e233f58..d29e56d8ced4 100644 --- a/arch/um/drivers/chan_user.c +++ b/arch/um/drivers/chan_user.c @@ -38,7 +38,16 @@ int generic_read(int fd, char *c_out, void *unused) int generic_write(int fd, const char *buf, int n, void *unused) { - return write(fd, buf, n); + int err; + + err = write(fd, buf, n); + if (err > 0) + return err; + else if (errno == EAGAIN) + return 0; + else if (err == 0) + return -EIO; + return -errno; } int generic_window_size(int fd, void *unused, unsigned short *rows_out, |