touchscreen: Fix sign bug

platform_get_irq_byname() can return negative results, it is not seen to
unsigned ts_irq. Make it signed.

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Acked-By: Luotao Fu <l.fu@pengutronix.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/input/touchscreen/stmpe-ts.c b/drivers/input/touchscreen/stmpe-ts.c
index 77f4374b216d..656148ec0027 100644
--- a/drivers/input/touchscreen/stmpe-ts.c
+++ b/drivers/input/touchscreen/stmpe-ts.c
@@ -269,7 +269,7 @@ static int __devinit stmpe_input_probe(struct platform_device *pdev)
         struct input_dev *idev;
         struct stmpe_ts_platform_data *ts_pdata = NULL;
         int ret = 0;
-        unsigned int ts_irq;
+        int ts_irq;
 
         ts_irq = platform_get_irq_byname(pdev, "FIFO_TH");
         if (ts_irq < 0)