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Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/serial167.c2
-rw-r--r--drivers/char/sysrq.c2
-rw-r--r--drivers/char/tty_io.c1
3 files changed, 2 insertions, 3 deletions
diff --git a/drivers/char/serial167.c b/drivers/char/serial167.c
index 8dfd24721a82..78a62ebe75c7 100644
--- a/drivers/char/serial167.c
+++ b/drivers/char/serial167.c
@@ -627,7 +627,6 @@ static irqreturn_t cd2401_rx_interrupt(int irq, void *dev_id)
char data;
int char_count;
int save_cnt;
- int len;
/* determine the channel and change to that context */
channel = (u_short) (base_addr[CyLICR] >> 2);
@@ -1528,7 +1527,6 @@ static int
cy_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
- unsigned long val;
struct cyclades_port *info = tty->driver_data;
int ret_val = 0;
void __user *argp = (void __user *)arg;
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 59de2525d303..d4e8b213a462 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -289,7 +289,7 @@ static struct sysrq_key_op sysrq_showstate_blocked_op = {
static void sysrq_ftrace_dump(int key, struct tty_struct *tty)
{
- ftrace_dump();
+ ftrace_dump(DUMP_ALL);
}
static struct sysrq_key_op sysrq_ftrace_dump_op = {
.handler = sysrq_ftrace_dump,
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 6da962c9b21c..d71f0fc34b46 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1875,6 +1875,7 @@ got_driver:
*/
if (filp->f_op == &hung_up_tty_fops)
filp->f_op = &tty_fops;
+ unlock_kernel();
goto retry_open;
}
unlock_kernel();