The patch titled
Char: mxser_new, lock count and flags
has been added to the -mm tree. Its filename is
char-mxser_new-lock-count-and-flags.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Char: mxser_new, lock count and flags
From: Jiri Slaby <jirislaby@xxxxxxxxx>
Both open count and INITIALIZED flag should be changed under lock.
Signed-off-by: Jiri Slaby <jirislaby@xxxxxxxxx>
Cc: <osv@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/char/mxser_new.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff -puN drivers/char/mxser_new.c~char-mxser_new-lock-count-and-flags drivers/char/mxser_new.c
--- a/drivers/char/mxser_new.c~char-mxser_new-lock-count-and-flags
+++ a/drivers/char/mxser_new.c
@@ -853,9 +853,9 @@ static int mxser_startup(struct mxser_po
* and set the speed of the serial port
*/
mxser_change_speed(info, NULL);
+ info->flags |= ASYNC_INITIALIZED;
spin_unlock_irqrestore(&info->slock, flags);
- info->flags |= ASYNC_INITIALIZED;
return 0;
}
@@ -925,6 +925,7 @@ static void mxser_shutdown(struct mxser_
static int mxser_open(struct tty_struct *tty, struct file *filp)
{
struct mxser_port *info;
+ unsigned long flags;
int retval, line;
line = tty->index;
@@ -941,7 +942,9 @@ static int mxser_open(struct tty_struct
/*
* Start up serial port
*/
+ spin_lock_irqsave(&info->slock, flags);
info->count++;
+ spin_unlock_irqrestore(&info->slock, flags);
retval = mxser_startup(info);
if (retval)
return retval;
_
Patches currently in -mm which might be from jirislaby@xxxxxxxxx are
git-input.patch
char-tty-delete-wake_up_interruptible-after-tty_wakeup.patch
char-isicom-remove-tty_hangwakeup-bottomhalves.patch
mxser-remove-ambiguous-redefinition-of-init_work.patch
make-drivers-char-mxser_newcmxser_hangup-static.patch
char-isicom-fix-locking-in-isr.patch
char-isicom-augment-card_reset.patch
char-isicom-check-card-state-in-isr.patch
char-isicom-support-higher-rates.patch
char-isicom-correct-probing-removing.patch
char-tty_wakeup-cleanup.patch
char-mxser_new-mark-init-functions.patch
char-mxser_new-remove-useless-spinlock.patch
char-serial167-cleanup.patch
char-n_r3964-cleanup.patch
char-mxser_new-remove-unused-stuff.patch
char-mxser-obsolete-old-nonexperimental-new.patch
char-mxser_new-remove-tty_wakeup-bottomhalf.patch
char-mxser_new-clean-request_irq-call.patch
doc-isicom-remove-reserved-ioctl-number.patch
char-mxser_new-alter-locking-in-isr.patch
char-mxser_new-header-file-cleanup.patch
char-mxser_new-less-loops-in-isr.patch
char-mxser_new-fix-twice-resource-releasing.patch
char-mxser_new-do-not-put-pdev.patch
char-mxser_new-upgrade-to-1915.patch
char-mxser_new-upgrade-to-1915-fix.patch
char-mxser_new-do-not-null-driver_data.patch
char-mxser_new-lock-count-and-flags.patch
char-mxser_new-fix-sparse-warning.patch
char-moxa-remove-unused-allocated-page.patch
char-moxa-do-not-initialize-global-static.patch
char-moxa-timers-cleanup.patch
char-moxa-remove-hangup-bottomhalf.patch
char-moxa-remove-unused-functions.patch
char-moxa-devids-cleanup.patch
char-moxa-use-pci_device.patch
char-moxa-eliminate-typedefs.patch
char-moxa-macros-cleanup.patch
char-moxa-use-del_timer_sync.patch
char-moxa-remove-moxa_pci_devinfo.patch
char-moxa-variables-cleanup.patch
char-moxa-remove-useless-vairables.patch
char-moxa-pci_probing-prepare.patch
char-moxa-pci-probing.patch
shrink_slab-handle-bad-shrinkers.patch
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