4 files changed, 24 insertions, 17 deletions

diff --git a/drivers/isdn/gigaset/Kconfig b/drivers/isdn/gigaset/Kconfig
index 0017e50c694..9ca889adf12 100644
--- a/drivers/isdn/gigaset/Kconfig
+++ b/drivers/isdn/gigaset/Kconfig
@@ -1,5 +1,5 @@
 menuconfig ISDN_DRV_GIGASET
-	tristate "Siemens Gigaset support (isdn)"
+	tristate "Siemens Gigaset support"
 	select CRC_CCITT
 	select BITREVERSE
 	help
@@ -11,11 +11,11 @@ menuconfig ISDN_DRV_GIGASET
 	  one of the connection specific parts that follow.
 	  This will build a module called "gigaset".
 
-if ISDN_DRV_GIGASET!=n
+if ISDN_DRV_GIGASET
 
 config GIGASET_BASE
 	tristate "Gigaset base station support"
-	depends on ISDN_DRV_GIGASET && USB
+	depends on USB
 	help
 	  Say M here if you want to use the USB interface of the Gigaset
 	  base for connection to your system.
@@ -23,7 +23,7 @@ config GIGASET_BASE
 
 config GIGASET_M105
 	tristate "Gigaset M105 support"
-	depends on ISDN_DRV_GIGASET && USB
+	depends on USB
 	help
 	  Say M here if you want to connect to the Gigaset base via DECT
 	  using a Gigaset M105 (Sinus 45 Data 2) USB DECT device.
@@ -31,7 +31,6 @@ config GIGASET_M105
 
 config GIGASET_M101
 	tristate "Gigaset M101 support"
-	depends on ISDN_DRV_GIGASET
 	help
 	  Say M here if you want to connect to the Gigaset base via DECT
 	  using a Gigaset M101 (Sinus 45 Data 1) RS232 DECT device.
@@ -48,7 +47,6 @@ config GIGASET_UNDOCREQ
 	help
 	  This enables support for USB requests we only know from
 	  reverse engineering (currently M105 only). If you need
-	  features like configuration mode of M105, say yes. If you
-	  care about your device, say no.
+	  features like configuration mode of M105, say yes.
 
-endif # ISDN_DRV_GIGASET != n
+endif # ISDN_DRV_GIGASET
diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
index 18dd8aacbe8..831ddce1467 100644
--- a/drivers/isdn/gigaset/bas-gigaset.c
+++ b/drivers/isdn/gigaset/bas-gigaset.c
@@ -46,6 +46,9 @@ MODULE_PARM_DESC(cidmode, "Call-ID mode");
 /* length limit according to Siemens 3070usb-protokoll.doc ch. 2.1 */
 #define IF_WRITEBUF 264
 
+/* interrupt pipe message size according to ibid. ch. 2.2 */
+#define IP_MSGSIZE 3
+
 /* Values for the Gigaset 307x */
 #define USB_GIGA_VENDOR_ID      0x0681
 #define USB_3070_PRODUCT_ID     0x0001
@@ -110,7 +113,7 @@ struct bas_cardstate {
 	unsigned char		*rcvbuf;	/* AT reply receive buffer */
 
 	struct urb		*urb_int_in;	/* URB for interrupt pipe */
-	unsigned char		int_in_buf[3];
+	unsigned char		*int_in_buf;
 
 	spinlock_t		lock;		/* locks all following */
 	int			basstate;	/* bitmap (BS_*) */
@@ -657,7 +660,7 @@ static void read_int_callback(struct urb *urb)
 	}
 
 	/* drop incomplete packets even if the missing bytes wouldn't matter */
-	if (unlikely(urb->actual_length < 3)) {
+	if (unlikely(urb->actual_length < IP_MSGSIZE)) {
 		dev_warn(cs->dev, "incomplete interrupt packet (%d bytes)\n",
 			 urb->actual_length);
 		goto resubmit;
@@ -2127,6 +2130,7 @@ static void gigaset_reinitbcshw(struct bc_state *bcs)
 static void gigaset_freecshw(struct cardstate *cs)
 {
 	/* timers, URBs and rcvbuf are disposed of in disconnect */
+	kfree(cs->hw.bas->int_in_buf);
 	kfree(cs->hw.bas);
 	cs->hw.bas = NULL;
 }
@@ -2140,6 +2144,12 @@ static int gigaset_initcshw(struct cardstate *cs)
 		pr_err("out of memory\n");
 		return 0;
 	}
+	ucs->int_in_buf = kmalloc(IP_MSGSIZE, GFP_KERNEL);
+	if (!ucs->int_in_buf) {
+		kfree(ucs);
+		pr_err("out of memory\n");
+		return 0;
+	}
 
 	ucs->urb_cmd_in = NULL;
 	ucs->urb_cmd_out = NULL;
@@ -2292,7 +2302,7 @@ static int gigaset_probe(struct usb_interface *interface,
 	usb_fill_int_urb(ucs->urb_int_in, udev,
 			 usb_rcvintpipe(udev,
 					(endpoint->bEndpointAddress) & 0x0f),
-			 ucs->int_in_buf, 3, read_int_callback, cs,
+			 ucs->int_in_buf, IP_MSGSIZE, read_int_callback, cs,
 			 endpoint->bInterval);
 	if ((rc = usb_submit_urb(ucs->urb_int_in, GFP_KERNEL)) != 0) {
 		dev_err(cs->dev, "could not submit interrupt URB: %s\n",
diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
index ac245e7e96a..3071a52467e 100644
--- a/drivers/isdn/gigaset/ser-gigaset.c
+++ b/drivers/isdn/gigaset/ser-gigaset.c
@@ -389,8 +389,7 @@ static void gigaset_freecshw(struct cardstate *cs)
 
 static void gigaset_device_release(struct device *dev)
 {
-	struct platform_device *pdev =
-		container_of(dev, struct platform_device, dev);
+	struct platform_device *pdev = to_platform_device(dev);
 
 	/* adapted from platform_device_release() in drivers/base/platform.c */
 	//FIXME is this actually necessary?
diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c
index fba61f67052..d7838516609 100644
--- a/drivers/isdn/gigaset/usb-gigaset.c
+++ b/drivers/isdn/gigaset/usb-gigaset.c
@@ -278,17 +278,17 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
 static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
 				  unsigned new_state)
 {
-	return -EINVAL;
+	return -ENOTTY;
 }
 
 static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
 {
-	return -EINVAL;
+	return -ENOTTY;
 }
 
 static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag)
 {
-	return -EINVAL;
+	return -ENOTTY;
 }
 #endif
 
@@ -577,7 +577,7 @@ static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6])
 	return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41,
 			       0, 0, &buf, 6, 2000);
 #else
-	return -EINVAL;
+	return -ENOTTY;
 #endif
 }