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authorJan Dumon <j.dumon@option.com>2010-01-05 04:51:28 +0000
committerDavid S. Miller <davem@davemloft.net>2010-01-07 00:43:45 -0800
commitf4763e96c08ea0790750603999e5b3158c3b50d4 (patch)
treeec0b326a66ae8eea1b179c8b3b698b5c8d5020d0 /drivers/net/usb
parentd9ced80d1084758772d350ac66b1ad0eeefc7f95 (diff)
downloadop-kernel-dev-f4763e96c08ea0790750603999e5b3158c3b50d4.zip
op-kernel-dev-f4763e96c08ea0790750603999e5b3158c3b50d4.tar.gz
hso: don't change the state of a closed port
Don't change the state of a port if it's not open. This fixes an issue where a port sometimes has to be opened twice before data can be received. Signed-off-by: Jan Dumon <j.dumon@option.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb')
-rw-r--r--drivers/net/usb/hso.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index aba90e7..fb1c5ac 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -1915,18 +1915,18 @@ static void intr_callback(struct urb *urb)
if (serial != NULL) {
D1("Pending read interrupt on port %d\n", i);
spin_lock(&serial->serial_lock);
- if (serial->rx_state == RX_IDLE) {
+ if (serial->rx_state == RX_IDLE &&
+ serial->open_count > 0) {
/* Setup and send a ctrl req read on
* port i */
- if (!serial->rx_urb_filled[0]) {
+ if (!serial->rx_urb_filled[0]) {
serial->rx_state = RX_SENT;
hso_mux_serial_read(serial);
} else
serial->rx_state = RX_PENDING;
-
} else {
- D1("Already pending a read on "
- "port %d\n", i);
+ D1("Already a read pending on "
+ "port %d or port not open\n", i);
}
spin_unlock(&serial->serial_lock);
}
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