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| author | Jiri Slaby <jslaby@suse.cz> | 2011-10-12 11:32:42 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-11 09:35:12 -0800 |
| commit | 36174dd629350d0654982977d7795ca28475c16f (patch) | |
| tree | aa8bd3253d87b0e41046940237134c60aee8d86b /drivers/tty/tty_io.c | |
| parent | 47bbdafa8ab90e3d4b7a4c6dd9bf54f7bc6df66d (diff) | |
| download | kernel_samsung_tuna-36174dd629350d0654982977d7795ca28475c16f.zip kernel_samsung_tuna-36174dd629350d0654982977d7795ca28475c16f.tar.gz kernel_samsung_tuna-36174dd629350d0654982977d7795ca28475c16f.tar.bz2 | |
TTY: drop driver reference in tty_open fail path
commit c290f8358acaeffd8e0c551ddcc24d1206143376 upstream.
When tty_driver_lookup_tty fails in tty_open, we forget to drop a
reference to the tty driver. This was added by commit 4a2b5fddd5 (Move
tty lookup/reopen to caller).
Fix that by adding tty_driver_kref_put to the fail path.
I will refactor the code later. This is for the ease of backporting to
stable.
Introduced-in: v2.6.28-rc2
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/tty/tty_io.c')
| -rw-r--r-- | drivers/tty/tty_io.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index b6f92d3..e9495ed 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1872,6 +1872,7 @@ got_driver: if (IS_ERR(tty)) { tty_unlock(); mutex_unlock(&tty_mutex); + tty_driver_kref_put(driver); return PTR_ERR(tty); } } |