diff options
Diffstat (limited to 'arch/um/drivers/line.c')
-rw-r--r-- | arch/um/drivers/line.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index 3e0b68e297f2..b4538dfb4820 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c | |||
@@ -216,18 +216,15 @@ int line_write(struct tty_struct *tty, const unsigned char *buf, int len) | |||
216 | { | 216 | { |
217 | struct line *line = tty->driver_data; | 217 | struct line *line = tty->driver_data; |
218 | unsigned long flags; | 218 | unsigned long flags; |
219 | int n, err, ret = 0; | 219 | int n, ret = 0; |
220 | 220 | ||
221 | if(tty->stopped) | 221 | if(tty->stopped) |
222 | return 0; | 222 | return 0; |
223 | 223 | ||
224 | spin_lock_irqsave(&line->lock, flags); | 224 | spin_lock_irqsave(&line->lock, flags); |
225 | if (line->head != line->tail) { | 225 | if (line->head != line->tail) |
226 | ret = buffer_data(line, buf, len); | 226 | ret = buffer_data(line, buf, len); |
227 | err = flush_buffer(line); | 227 | else { |
228 | if (err <= 0 && (err != -EAGAIN || !ret)) | ||
229 | ret = err; | ||
230 | } else { | ||
231 | n = write_chan(&line->chan_list, buf, len, | 228 | n = write_chan(&line->chan_list, buf, len, |
232 | line->driver->write_irq); | 229 | line->driver->write_irq); |
233 | if (n < 0) { | 230 | if (n < 0) { |