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| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2008-04-30 11:53:59 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-30 19:29:45 +0400 |
| commit | 978e595f88a1fba5869aa42a4af4fba36f33ecac (patch) | |
| tree | 60848f49949c5b7b518621ee36cdc6d500244539 /drivers/char/stallion.c | |
| parent | ac0e4b7d319bf284bb64bc7e1c051417386b34a4 (diff) | |
| download | linux-978e595f88a1fba5869aa42a4af4fba36f33ecac.tar.xz | |
tty/serial: lay the foundations for the next set of reworks
- Stop drivers calling their own flush method indirectly, it obfuscates code
and it will change soon anyway
- A few more lock_kernel paths temporarily needed in some driver internal
waiting code
- Remove private put_char method that does a write call for one char - we
have that anyway
- Most but not yet all of the termios copy under lock fixing (some has other
dependencies to follow)
- Note a few locking bugs in drivers found in the process
- Kill remaining [ab]users of TIOCG/SSOFTCAR in the driver, these must go to
fix the termios locking
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/stallion.c')
| -rw-r--r-- | drivers/char/stallion.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c index 983244ab1362..d17be10c5d21 100644 --- a/drivers/char/stallion.c +++ b/drivers/char/stallion.c @@ -875,6 +875,7 @@ static void stl_waituntilsent(struct tty_struct *tty, int timeout) timeout = HZ; tend = jiffies + timeout; + lock_kernel(); while (stl_datastate(portp)) { if (signal_pending(current)) break; @@ -882,6 +883,7 @@ static void stl_waituntilsent(struct tty_struct *tty, int timeout) if (time_after_eq(jiffies, tend)) break; } + unlock_kernel(); } /*****************************************************************************/ |