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| author | guoyin.chen <guoyin.chen@freescale.com> | 2014-04-30 13:36:17 +0800 |
|---|---|---|
| committer | guoyin.chen <guoyin.chen@freescale.com> | 2014-04-30 13:36:17 +0800 |
| commit | e7fdbbc7236c7c884cac0ea1fa14bca3d0990c94 (patch) | |
| tree | eab0dc4733ecd4200655ad62f831623da88dd4d7 /include/linux/tty_ldisc.h | |
| parent | c4bb6b95be0a385d39fef45d577d5969c077feeb (diff) | |
| parent | 8614fc820d62cc2c84eea8d2fdd3157805fdb1c5 (diff) | |
Merge remote-tracking branch 'fsl-linux-sdk/imx_3.10.31_1.1.0_alpha' into imx_3.10.y_androidkk4.4.2_2.0.0-alpha
Diffstat (limited to 'include/linux/tty_ldisc.h')
| -rw-r--r-- | include/linux/tty_ldisc.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h index 58390c73df8b..84c9d8a96f48 100644 --- a/include/linux/tty_ldisc.h +++ b/include/linux/tty_ldisc.h @@ -91,7 +91,10 @@ * This function is called by the low-level tty driver to signal * that line discpline should try to send more characters to the * low-level driver for transmission. If the line discpline does - * not have any more data to send, it can just return. + * not have any more data to send, it can just return. If the line + * discipline does have some data to send, please arise a tasklet + * or workqueue to do the real data transfer. Do not send data in + * this hook, it may leads to a deadlock. * * int (*hangup)(struct tty_struct *) * |