Input: tnetv107x-keypad - don't treat NULL clk as an error

We should use IS_ERR() when checking whether clk_get() succeeded or
not since it returns errors by encoding error codes with ERR_PTR().

Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/input/keyboard/tnetv107x-keypad.c b/drivers/input/keyboard/tnetv107x-keypad.c
index b4a81ebfab9..c8f097a15d8 100644
--- a/drivers/input/keyboard/tnetv107x-keypad.c
+++ b/drivers/input/keyboard/tnetv107x-keypad.c
@@ -14,6 +14,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/input.h>
 #include <linux/platform_device.h>
@@ -219,9 +220,9 @@ static int __devinit keypad_probe(struct platform_device *pdev)
         }
 
         kp->clk = clk_get(dev, NULL);
-        if (!kp->clk) {
+        if (IS_ERR(kp->clk)) {
                 dev_err(dev, "cannot claim device clock\n");
-                error = -EINVAL;
+                error = PTR_ERR(kp->clk);
                 goto error_clk;
         }