The patch titled
watchdog: txx9: Fix locking, switch to unlocked_ioctl
has been removed from the -mm tree. Its filename was
watchdog-txx9-fix-locking-switch-to-unlocked_ioctl.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: watchdog: txx9: Fix locking, switch to unlocked_ioctl
From: Alan Cox <alan@xxxxxxxxxx>
Signed-off-by: Alan Cox <alan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/watchdog/txx9wdt.c | 31 +++++++++++++++++++------------
1 file changed, 19 insertions(+), 12 deletions(-)
diff -puN drivers/watchdog/txx9wdt.c~watchdog-txx9-fix-locking-switch-to-unlocked_ioctl drivers/watchdog/txx9wdt.c
--- a/drivers/watchdog/txx9wdt.c~watchdog-txx9-fix-locking-switch-to-unlocked_ioctl
+++ a/drivers/watchdog/txx9wdt.c
@@ -45,27 +45,34 @@ static unsigned long txx9wdt_alive;
static int expect_close;
static struct txx9_tmr_reg __iomem *txx9wdt_reg;
static struct clk *txx9_imclk;
+static DECLARE_LOCK(txx9_lock);
static void txx9wdt_ping(void)
{
+ spin_lock(&txx9_lock);
__raw_writel(TXx9_TMWTMR_TWIE | TXx9_TMWTMR_TWC, &txx9wdt_reg->wtmr);
+ spin_unlock(&txx9_lock);
}
static void txx9wdt_start(void)
{
+ spin_lock(&txx9_lock);
__raw_writel(WD_TIMER_CLK * timeout, &txx9wdt_reg->cpra);
__raw_writel(WD_TIMER_CCD, &txx9wdt_reg->ccdr);
__raw_writel(0, &txx9wdt_reg->tisr); /* clear pending interrupt */
__raw_writel(TXx9_TMTCR_TCE | TXx9_TMTCR_CCDE | TXx9_TMTCR_TMODE_WDOG,
&txx9wdt_reg->tcr);
__raw_writel(TXx9_TMWTMR_TWIE | TXx9_TMWTMR_TWC, &txx9wdt_reg->wtmr);
+ spin_unlock(&txx9_lock);
}
static void txx9wdt_stop(void)
{
+ spin_lock(&txx9_lock);
__raw_writel(TXx9_TMWTMR_WDIS, &txx9wdt_reg->wtmr);
__raw_writel(__raw_readl(&txx9wdt_reg->tcr) & ~TXx9_TMTCR_TCE,
&txx9wdt_reg->tcr);
+ spin_unlock(&txx9_lock);
}
static int txx9wdt_open(struct inode *inode, struct file *file)
@@ -120,13 +127,13 @@ static ssize_t txx9wdt_write(struct file
return len;
}
-static int txx9wdt_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static long txx9wdt_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
{
void __user *argp = (void __user *)arg;
int __user *p = argp;
int new_timeout;
- static struct watchdog_info ident = {
+ static const struct watchdog_info ident = {
.options = WDIOF_SETTIMEOUT |
WDIOF_KEEPALIVEPING |
WDIOF_MAGICCLOSE,
@@ -168,18 +175,18 @@ static int txx9wdt_notify_sys(struct not
}
static const struct file_operations txx9wdt_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = txx9wdt_write,
- .ioctl = txx9wdt_ioctl,
- .open = txx9wdt_open,
- .release = txx9wdt_release,
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .write = txx9wdt_write,
+ .unlocked_ioctl = txx9wdt_ioctl,
+ .open = txx9wdt_open,
+ .release = txx9wdt_release,
};
static struct miscdevice txx9wdt_miscdev = {
- .minor = WATCHDOG_MINOR,
- .name = "watchdog",
- .fops = &txx9wdt_fops,
+ .minor = WATCHDOG_MINOR,
+ .name = "watchdog",
+ .fops = &txx9wdt_fops,
};
static struct notifier_block txx9wdt_notifier = {
_
Patches currently in -mm which might be from alan@xxxxxxxxxx are
origin.patch
linux-next.patch
ia64-hp-sim-simserialc-adapt-to-new-tty-framework.patch
remove-is_tty.patch
mn10300-fix-mn10300s-serial-port-driver-to-get-at-its-tty_struct.patch
hamradio-add-missing-sanity-check-to-tty-operation.patch
git-watchdog.patch
serial-8250_gscc-add-module_license.patch
serial-add-support-for-a-no-name-4-ports-multiserial-card.patch
istallion-remove-unused-variable.patch
stallion-removed-unused-variable.patch
spidev-bkl-removal.patch
rtc-push-the-bkl-down-into-the-driver-ioctl-method.patch
efirtc-push-down-the-bkl.patch
ip2-push-bkl-down-for-the-firmware-interface.patch
mwave-ioctl-bkl-pushdown.patch
rio-push-down-the-bkl-into-the-firmware-ioctl-handler.patch
sx-push-bkl-down-into-the-firmware-ioctl-handler.patch
ixj-push-bkl-into-driver-and-wrap-ioctls.patch
ppdev-wrap-ioctl-handler-in-driver-and-push-lock-down.patch
ds1302-push-down-the-bkl-into-the-driver-ioctl-code.patch
dsp56k-bkl-pushdown.patch
char-mxser-ioctl-cleanup.patch
char-mxser-globals-cleanup.patch
char-mxser-update-documentation.patch
char-mxser-prints-cleanup.patch
char-mxser-remove-predefined-isa-support.patch
char-mxser-various-cleanups.patch
unexport-proc_clear_tty.patch
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