Allocated urbs and buffers were never freed on errors in open.
Cc: [email protected]
Signed-off-by: Johan Hovold <[email protected]>
---
Here's another one for v3.11-rc1...
Johan
drivers/usb/serial/mos7840.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 7faae5e..c10fc15 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -913,20 +913,20 @@ static int mos7840_open(struct tty_struct *tty, struct
usb_serial_port *port)
status = mos7840_get_reg_sync(port, mos7840_port->SpRegOffset, &Data);
if (status < 0) {
dev_dbg(&port->dev, "Reading Spreg failed\n");
- return -1;
+ goto err;
}
Data |= 0x80;
status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data);
if (status < 0) {
dev_dbg(&port->dev, "writing Spreg failed\n");
- return -1;
+ goto err;
}
Data &= ~0x80;
status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data);
if (status < 0) {
dev_dbg(&port->dev, "writing Spreg failed\n");
- return -1;
+ goto err;
}
/* End of block to be checked */
@@ -935,7 +935,7 @@ static int mos7840_open(struct tty_struct *tty, struct
usb_serial_port *port)
&Data);
if (status < 0) {
dev_dbg(&port->dev, "Reading Controlreg failed\n");
- return -1;
+ goto err;
}
Data |= 0x08; /* Driver done bit */
Data |= 0x20; /* rx_disable */
@@ -943,7 +943,7 @@ static int mos7840_open(struct tty_struct *tty, struct
usb_serial_port *port)
mos7840_port->ControlRegOffset, Data);
if (status < 0) {
dev_dbg(&port->dev, "writing Controlreg failed\n");
- return -1;
+ goto err;
}
/* do register settings here */
/* Set all regs to the device default values. */
@@ -954,21 +954,21 @@ static int mos7840_open(struct tty_struct *tty, struct
usb_serial_port *port)
status = mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
if (status < 0) {
dev_dbg(&port->dev, "disabling interrupts failed\n");
- return -1;
+ goto err;
}
/* Set FIFO_CONTROL_REGISTER to the default value */
Data = 0x00;
status = mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
if (status < 0) {
dev_dbg(&port->dev, "Writing FIFO_CONTROL_REGISTER failed\n");
- return -1;
+ goto err;
}
Data = 0xcf;
status = mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
if (status < 0) {
dev_dbg(&port->dev, "Writing FIFO_CONTROL_REGISTER failed\n");
- return -1;
+ goto err;
}
Data = 0x03;
@@ -1111,6 +1111,15 @@ static int mos7840_open(struct tty_struct *tty, struct
usb_serial_port *port)
/* mos7840_change_port_settings(mos7840_port,old_termios); */
return 0;
+err:
+ for (j = 0; j < NUM_URBS; ++j) {
+ urb = mos7840_port->write_urb_pool[j];
+ if (!urb)
+ continue;
+ kfree(urb->transfer_buffer);
+ usb_free_urb(urb);
+ }
+ return status;
}
/*****************************************************************************
--
1.8.2.1
--
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