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| author | Kyle McMartin <kyle@mcmartin.ca> | 2010-11-26 17:05:38 -0500 |
|---|---|---|
| committer | Kyle McMartin <kyle@mcmartin.ca> | 2010-11-26 17:05:38 -0500 |
| commit | e31d248b5c211bc2e8138f04fcd47e1db35cdf1f (patch) | |
| tree | 41303489e5a4f9bf6136585592f6ef77a80ff433 /debug-tty-print-dev-name.patch | |
| parent | 2f05b4a2c9603413e1b3832b758d132a24929ec1 (diff) | |
| download | kernel-e31d248b5c211bc2e8138f04fcd47e1db35cdf1f.tar.gz kernel-e31d248b5c211bc2e8138f04fcd47e1db35cdf1f.tar.xz kernel-e31d248b5c211bc2e8138f04fcd47e1db35cdf1f.zip | |
copy tty debugging from rawhide
Diffstat (limited to 'debug-tty-print-dev-name.patch')
| -rw-r--r-- | debug-tty-print-dev-name.patch | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/debug-tty-print-dev-name.patch b/debug-tty-print-dev-name.patch new file mode 100644 index 000000000..9010b64fa --- /dev/null +++ b/debug-tty-print-dev-name.patch @@ -0,0 +1,17 @@ +diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c +index 613c852..09c86d2 100644 +--- a/drivers/tty/tty_io.c ++++ b/drivers/tty/tty_io.c +@@ -1322,7 +1322,11 @@ static int tty_reopen(struct tty_struct *tty) + tty->driver = driver; /* N.B. why do this every time?? */ + + mutex_lock(&tty->ldisc_mutex); +- WARN_ON(!test_bit(TTY_LDISC, &tty->flags)); ++ if (!test_bit(TTY_LDISC, &tty->flags)) { ++ printk("%s: !test_bit(TTY_LDISC, &tty->flags) dev=%s ldisc=%s\n", ++ __func__, tty->name, tty->ldisc ? tty->ldisc->ops ? tty->ldisc->ops->name : NULL : NULL); ++ WARN_ON(1); ++ } + mutex_unlock(&tty->ldisc_mutex); + + return 0; |