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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-25 13:08:16 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-25 13:08:16 +0200 |
| commit | 10a010f6953b5a14ba2f0be40a4fce1bea220875 (patch) | |
| tree | 19aadf718c796bc7fae0a1a1c970d84d67c541d4 /drivers/char/n_hdlc.c | |
| parent | 510b37258dfd61693ca6c039865c78bd996e3718 (diff) | |
| parent | fb2e405fc1fc8b20d9c78eaa1c7fd5a297efde43 (diff) | |
Merge branch 'linus' into x86/x2apic
Conflicts:
drivers/pci/dmar.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/char/n_hdlc.c')
| -rw-r--r-- | drivers/char/n_hdlc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/char/n_hdlc.c b/drivers/char/n_hdlc.c index ed4e03333ab..69ec6399c71 100644 --- a/drivers/char/n_hdlc.c +++ b/drivers/char/n_hdlc.c @@ -677,6 +677,10 @@ static ssize_t n_hdlc_tty_write(struct tty_struct *tty, struct file *file, /* Allocate transmit buffer */ /* sleep until transmit buffer available */ while (!(tbuf = n_hdlc_buf_get(&n_hdlc->tx_free_buf_list))) { + if (file->f_flags & O_NONBLOCK) { + error = -EAGAIN; + break; + } schedule(); n_hdlc = tty2n_hdlc (tty); |