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-rw-r--r--drivers/tty/amiserial.c10
-rw-r--r--drivers/tty/cyclades.c6
-rw-r--r--drivers/tty/hvc/hvcs.c24
-rw-r--r--drivers/tty/hvc/hvsi.c5
-rw-r--r--drivers/tty/isicom.c2
-rw-r--r--drivers/tty/mxser.c2
-rw-r--r--drivers/tty/rocket.c6
-rw-r--r--drivers/tty/serial/68328serial.c9
-rw-r--r--drivers/tty/serial/crisv10.c15
-rw-r--r--drivers/tty/synclink.c2
-rw-r--r--drivers/tty/synclink_gt.c2
-rw-r--r--drivers/tty/synclinkmp.c2
12 files changed, 26 insertions, 59 deletions
diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c
index b42f00d987a..75328625755 100644
--- a/drivers/tty/amiserial.c
+++ b/drivers/tty/amiserial.c
@@ -1768,13 +1768,9 @@ static int get_async_struct(int line, struct async_struct **ret_info)
static int rs_open(struct tty_struct *tty, struct file * filp)
{
struct async_struct *info;
- int retval, line;
+ int retval;
- line = tty->index;
- if ((line < 0) || (line >= NR_PORTS)) {
- return -ENODEV;
- }
- retval = get_async_struct(line, &info);
+ retval = get_async_struct(tty->index, &info);
if (retval) {
return retval;
}
@@ -1964,7 +1960,7 @@ static int __init amiga_serial_probe(struct platform_device *pdev)
struct serial_state * state;
int error;
- serial_driver = alloc_tty_driver(1);
+ serial_driver = alloc_tty_driver(NR_PORTS);
if (!serial_driver)
return -ENOMEM;
diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
index bc7b5a5650b..e61cabdd69d 100644
--- a/drivers/tty/cyclades.c
+++ b/drivers/tty/cyclades.c
@@ -1515,13 +1515,9 @@ static void cy_shutdown(struct cyclades_port *info, struct tty_struct *tty)
static int cy_open(struct tty_struct *tty, struct file *filp)
{
struct cyclades_port *info;
- unsigned int i, line;
+ unsigned int i, line = tty->index;
int retval;
- line = tty->index;
- if (tty->index < 0 || NR_PORTS <= line)
- return -ENODEV;
-
for (i = 0; i < NR_CARDS; i++)
if (line < cy_card[i].first_line + cy_card[i].nports &&
line >= cy_card[i].first_line)
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index da0aa476804..d23759183b4 100644
--- a/drivers/tty/hvc/hvcs.c
+++ b/drivers/tty/hvc/hvcs.c
@@ -1090,27 +1090,23 @@ static int hvcs_enable_device(struct hvcs_struct *hvcsd, uint32_t unit_address,
*/
static struct hvcs_struct *hvcs_get_by_index(int index)
{
- struct hvcs_struct *hvcsd = NULL;
+ struct hvcs_struct *hvcsd;
unsigned long flags;
spin_lock(&hvcs_structs_lock);
- /* We can immediately discard OOB requests */
- if (index >= 0 && index < HVCS_MAX_SERVER_ADAPTERS) {
- list_for_each_entry(hvcsd, &hvcs_structs, next) {
- spin_lock_irqsave(&hvcsd->lock, flags);
- if (hvcsd->index == index) {
- kref_get(&hvcsd->kref);
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- spin_unlock(&hvcs_structs_lock);
- return hvcsd;
- }
+ list_for_each_entry(hvcsd, &hvcs_structs, next) {
+ spin_lock_irqsave(&hvcsd->lock, flags);
+ if (hvcsd->index == index) {
+ kref_get(&hvcsd->kref);
spin_unlock_irqrestore(&hvcsd->lock, flags);
+ spin_unlock(&hvcs_structs_lock);
+ return hvcsd;
}
- hvcsd = NULL;
+ spin_unlock_irqrestore(&hvcsd->lock, flags);
}
-
spin_unlock(&hvcs_structs_lock);
- return hvcsd;
+
+ return NULL;
}
/*
diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c
index 60bc4516418..a7488b74864 100644
--- a/drivers/tty/hvc/hvsi.c
+++ b/drivers/tty/hvc/hvsi.c
@@ -737,14 +737,11 @@ static int hvsi_open(struct tty_struct *tty, struct file *filp)
{
struct hvsi_struct *hp;
unsigned long flags;
- int line = tty->index;
int ret;
pr_debug("%s\n", __func__);
- if (line < 0 || line >= hvsi_count)
- return -ENODEV;
- hp = &hvsi_ports[line];
+ hp = &hvsi_ports[tty->index];
tty->driver_data = hp;
diff --git a/drivers/tty/isicom.c b/drivers/tty/isicom.c
index b3a28b5f02a..03c14979acc 100644
--- a/drivers/tty/isicom.c
+++ b/drivers/tty/isicom.c
@@ -849,8 +849,6 @@ static struct tty_port *isicom_find_port(struct tty_struct *tty)
unsigned int board;
int line = tty->index;
- if (line < 0 || line > PORT_COUNT-1)
- return NULL;
board = BOARD(line);
card = &isi_card[board];
diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 260d0312352..17ff377e412 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -1010,8 +1010,6 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
line = tty->index;
if (line == MXSER_PORTS)
return 0;
- if (line < 0 || line > MXSER_PORTS)
- return -ENODEV;
info = &mxser_boards[line / MXSER_PORTS_PER_BOARD].ports[line % MXSER_PORTS_PER_BOARD];
if (!info->ioaddr)
return -ENODEV;
diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c
index b088e1ea433..777d5f9cf6c 100644
--- a/drivers/tty/rocket.c
+++ b/drivers/tty/rocket.c
@@ -892,12 +892,12 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
{
struct r_port *info;
struct tty_port *port;
- int line = 0, retval;
+ int retval;
CHANNEL_t *cp;
unsigned long page;
- line = tty->index;
- if (line < 0 || line >= MAX_RP_PORTS || ((info = rp_table[line]) == NULL))
+ info = rp_table[tty->index];
+ if (info == NULL)
return -ENXIO;
port = &info->port;
diff --git a/drivers/tty/serial/68328serial.c b/drivers/tty/serial/68328serial.c
index a88ef9782a4..7398390e7e6 100644
--- a/drivers/tty/serial/68328serial.c
+++ b/drivers/tty/serial/68328serial.c
@@ -1190,14 +1190,9 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
int rs_open(struct tty_struct *tty, struct file * filp)
{
struct m68k_serial *info;
- int retval, line;
-
- line = tty->index;
-
- if (line >= NR_PORTS || line < 0) /* we have exactly one */
- return -ENODEV;
+ int retval;
- info = &m68k_soft[line];
+ info = &m68k_soft[tty->index];
if (serial_paranoia_check(info, tty->name, "rs_open"))
return -ENODEV;
diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c
index 1dfba7b779c..23d79169687 100644
--- a/drivers/tty/serial/crisv10.c
+++ b/drivers/tty/serial/crisv10.c
@@ -4105,20 +4105,11 @@ static int
rs_open(struct tty_struct *tty, struct file * filp)
{
struct e100_serial *info;
- int retval, line;
+ int retval;
unsigned long page;
int allocated_resources = 0;
- /* find which port we want to open */
- line = tty->index;
-
- if (line < 0 || line >= NR_PORTS)
- return -ENODEV;
-
- /* find the corresponding e100_serial struct in the table */
- info = rs_table + line;
-
- /* don't allow the opening of ports that are not enabled in the HW config */
+ info = rs_table + tty->index;
if (!info->enabled)
return -ENODEV;
@@ -4131,7 +4122,7 @@ rs_open(struct tty_struct *tty, struct file * filp)
tty->driver_data = info;
info->port.tty = tty;
- info->port.tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+ tty->low_latency = !!(info->flags & ASYNC_LOW_LATENCY);
if (!tmp_buf) {
page = get_zeroed_page(GFP_KERNEL);
diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
index 2b2988c779c..8e518da85fd 100644
--- a/drivers/tty/synclink.c
+++ b/drivers/tty/synclink.c
@@ -3381,7 +3381,7 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
/* verify range of specified line number */
line = tty->index;
- if ((line < 0) || (line >= mgsl_device_count)) {
+ if (line >= mgsl_device_count) {
printk("%s(%d):mgsl_open with invalid line #%d.\n",
__FILE__,__LINE__,line);
return -ENODEV;
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
index a8b66be37e6..6bee4907c6a 100644
--- a/drivers/tty/synclink_gt.c
+++ b/drivers/tty/synclink_gt.c
@@ -654,7 +654,7 @@ static int open(struct tty_struct *tty, struct file *filp)
unsigned long flags;
line = tty->index;
- if ((line < 0) || (line >= slgt_device_count)) {
+ if (line >= slgt_device_count) {
DBGERR(("%s: open with invalid line #%d.\n", driver_name, line));
return -ENODEV;
}
diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
index ddabb61c85b..4fb6c4b31b7 100644
--- a/drivers/tty/synclinkmp.c
+++ b/drivers/tty/synclinkmp.c
@@ -721,7 +721,7 @@ static int open(struct tty_struct *tty, struct file *filp)
unsigned long flags;
line = tty->index;
- if ((line < 0) || (line >= synclinkmp_device_count)) {
+ if (line >= synclinkmp_device_count) {
printk("%s(%d): open with invalid line #%d.\n",
__FILE__,__LINE__,line);
return -ENODEV;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-25 13:16:36 +0000