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hso for error -22 (-EINVAL) printk's

PATCH In review Denis Joseph Barrow 2 participants 2 messages Sep 16, 2008 – Sep 25, 2008

Subsystems (4)
Networking Network drivers USB networking drivers Hso 3G modem driver
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Denis Joseph Barrow

author
#0 lore raw

PATCH 1/1 hso for error -22 (-EINVAL) printk's

Added check for IFF_UP in hso_resume, this should eliminate -EINVAL (-22) errors caused from urb's being submitted twice, once by hso_resume & once in hso_net_open, if suspend/resume USB power saving mode is enabled

Signed-off-by Denis Joseph Barrow <[email protected]>

---

drivers/net/usb/hso.c +14 -11
Index: linux-2.6.27-rc6/drivers/net/usb/hso.c
===================================================================
@@ -2606,18 +2606,21 @@
 		if (network_table[i] &&
 		    (network_table[i]->interface == iface)) {
 			hso_net = dev2net(network_table[i]);
-			/* First transmit any lingering data, then restart the
-			 * device. */
-			if (hso_net->skb_tx_buf) {
-				dev_dbg(&iface->dev,
-					"Transmitting lingering data\n");
-				hso_net_start_xmit(hso_net->skb_tx_buf,
-						   hso_net->net);
-				hso_net->skb_tx_buf = NULL;
+			if (hso_net->flags & IFF_UP) {
+				/* First transmit any lingering data,
+				   then restart the device. */
+				if (hso_net->skb_tx_buf) {
+					dev_dbg(&iface->dev,
+						"Transmitting"
+						" lingering data\n");
+					hso_net_start_xmit(hso_net->skb_tx_buf,
+							   hso_net->net);
+					hso_net->skb_tx_buf = NULL;
+				}
+				result = hso_start_net_device(network_table[i]);
+				if (result)
+					goto out;
 			}
-			result = hso_start_net_device(network_table[i]);
-			if (result)
-				goto out;
 		}
 	}
Signature · 6 lines
best regards,
D.J. Barrow
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#1 lore raw
Quoted 25 lines · Denis Joseph Barrow

Added check for IFF_UP in hso_resume, this should eliminate -EINVAL (-22) errors caused from urb's being submitted twice, once by hso_resume & once in hso_net_open, if suspend/resume USB power saving mode is enabled

Signed-off-by Denis Joseph Barrow <[email protected]>

---
Index: linux-2.6.27-rc6/drivers/net/usb/hso.c
===================================================================

drivers/net/usb/hso.c +4 -8
@@ -2606,18 +2606,21 @@
 		if (network_table[i] &&
 		    (network_table[i]->interface == iface)) {
 			hso_net = dev2net(network_table[i]);
-			/* First transmit any lingering data, then restart the
-			 * device. */
-			if (hso_net->skb_tx_buf) {
-				dev_dbg(&iface->dev,
-					"Transmitting lingering data\n");
-				hso_net_start_xmit(hso_net->skb_tx_buf,
-						   hso_net->net);
-				hso_net->skb_tx_buf = NULL;
+			if (hso_net->flags & IFF_UP) {
+				/* First transmit any lingering data,
+				   then restart the device. */
+				if (hso_net->skb_tx_buf) {

drivers/net/usb/hso.c line 2622

Quoted 10 lines
drivers/net/usb/hso.c +10 -0
+					dev_dbg(&iface->dev,
+						"Transmitting"
+						" lingering data\n");
+					hso_net_start_xmit(hso_net->skb_tx_buf,
+							   hso_net->net);
+					hso_net->skb_tx_buf = NULL;
+				}
+				result = hso_start_net_device(network_table[i]);
+				if (result)
+					goto out;

you should be checking netif_running() not IFF_UP