hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[PATCH] rocket.c: Fix ldisc ref count handling 

If bailing out because there is nothing to receive in rp_do_receive(),
tty_ldisc_deref is not called.  Failure to do so increases the ref count
and causes release_dev() to hang since it can't get the ref count to 0.

Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Michal Ostrowski 2005-07-15 03:56:33 -07:00 committed by Linus Torvalds
parent 6f97933d0f
commit a1287ba1ba
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/char/rocket.c
View File

@ -355,7 +355,7 @@ static void rp_do_receive(struct r_port *info,
ToRecv = space; ToRecv = space;
if (ToRecv <= 0) if (ToRecv <= 0)
return; goto done;
/* /*
* if status indicates there are errored characters in the * if status indicates there are errored characters in the
@ -437,6 +437,7 @@ static void rp_do_receive(struct r_port *info,
} }
/* Push the data up to the tty layer */ /* Push the data up to the tty layer */
ld->receive_buf(tty, tty->flip.char_buf, tty->flip.flag_buf, count); ld->receive_buf(tty, tty->flip.char_buf, tty->flip.flag_buf, count);
done:
tty_ldisc_deref(ld); tty_ldisc_deref(ld);
} }