Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
  Input: wacom - add support for Cintiq 20WSX
  Input: ucb1400_ts - IRQ probe fix
  Input: at32psif - update MODULE_AUTHOR with new email
  Input: mac_hid - add lockdep annotation to emumousebtn
  Input: i8042 - fix incorrect usage of strncpy and strncat
  Input: bf54x-keys - add infrastructure for keypad wakeups
  Input: add MODULE_ALIAS() to hotpluggable platform modules
  Input: drivers/char/keyboard.c - use time_after
  Input: fix ordering in joystick Makefile
  Input: wm97xx-core - support use as a wakeup source
  Input: wm97xx-core - use IRQF_SAMPLE_RANDOM
  Input: wm97xx-core - only schedule interrupt handler if not already scheduled
  Input: add Zhen Hua driver
  Input: aiptek - add support for Genius G-PEN 560 tablet
  Input: wacom - implement suspend and autosuspend
  Input: xpad - set proper buffer length for outgoing requests
  Input: omap-keypad - fix build warning
  Input: gpio_keys - irq handling cleanup
  Input: add PS/2 serio driver for AVR32 devices
  Input: put ledstate in the keyboard notifier
  ...

1 files changed, 19 insertions, 12 deletions

diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 63f9664a066..3a0a8ca5707 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -396,9 +396,12 @@ static int gunze_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
 static int dmc_tsc10_init(struct usbtouch_usb *usbtouch)
 {
 	struct usb_device *dev = usbtouch->udev;
-	int ret;
-	unsigned char buf[2];
+	int ret = -ENOMEM;
+	unsigned char *buf;
 
+	buf = kmalloc(2, GFP_KERNEL);
+	if (!buf)
+		goto err_nobuf;
 	/* reset */
 	buf[0] = buf[1] = 0xFF;
 	ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
@@ -406,9 +409,11 @@ static int dmc_tsc10_init(struct usbtouch_usb *usbtouch)
 	                      USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 	                      0, 0, buf, 2, USB_CTRL_SET_TIMEOUT);
 	if (ret < 0)
-		return ret;
-	if (buf[0] != 0x06 || buf[1] != 0x00)
-		return -ENODEV;
+		goto err_out;
+	if (buf[0] != 0x06 || buf[1] != 0x00) {
+		ret = -ENODEV;
+		goto err_out;
+	}
 
 	/* set coordinate output rate */
 	buf[0] = buf[1] = 0xFF;
@@ -417,20 +422,22 @@ static int dmc_tsc10_init(struct usbtouch_usb *usbtouch)
 	                      USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 	                      TSC10_RATE_150, 0, buf, 2, USB_CTRL_SET_TIMEOUT);
 	if (ret < 0)
-		return ret;
+		goto err_out;
 	if ((buf[0] != 0x06 || buf[1] != 0x00) &&
-	    (buf[0] != 0x15 || buf[1] != 0x01))
-		return -ENODEV;
+	    (buf[0] != 0x15 || buf[1] != 0x01)) {
+		ret = -ENODEV;
+		goto err_out;
+	}
 
 	/* start sending data */
 	ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
 	                      TSC10_CMD_DATA1,
 	                      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 	                      0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
-	if (ret < 0)
-		return ret;
-
-	return 0;
+err_out:
+	kfree(buf);
+err_nobuf:
+	return ret;
 }