cptm1217: check if interrupts are masked at probe

the function cp_tm1217_mask_interrupt can return failure.
added the check and the failure path.

Cc: Ramesh Agarwal <ramesh.agarwal@intel.com>
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/cptm1217/clearpad_tm1217.c b/drivers/staging/cptm1217/clearpad_tm1217.c
index 7f265ce..4304604 100644 (file)
--- a/drivers/staging/cptm1217/clearpad_tm1217.c
+++ b/drivers/staging/cptm1217/clearpad_tm1217.c
@@ -446,6 +446,12 @@ static int cp_tm1217_probe(struct i2c_client *client,
 
        /* Mask all the interrupts */
        retval = cp_tm1217_mask_interrupt(ts);
+       if (retval) {
+               dev_err(ts->dev, "failed to mask interrupts, error: %d\n",
+                       retval);
+               kfree(ts);
+               return retval;
+       }
 
        /* Read the controller information */
        cp_tm1217_init_data(ts);