Staging: most: fix passing a potential null pointer

This patch fixes passing of a potential null pointer.

Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Christian Gromm <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

diff --git a/drivers/staging/most/aim-cdev/cdev.c b/drivers/staging/most/aim-cdev/cdev.c
index cfc32dff651277fe01e9a615e8ade33de8718614..252a17cf153cf1e3b3e3d9010d93d8a73ed5923d 100644 (file)
--- a/drivers/staging/most/aim-cdev/cdev.c
+++ b/drivers/staging/most/aim-cdev/cdev.c
@@ -204,7 +204,8 @@ static ssize_t aim_write(struct file *filp, const char __user *buf,
        }
        return actual_len - retval;
 error:
        }
        return actual_len - retval;
 error:

-       most_put_mbo(mbo);
+       if (mbo)
+               most_put_mbo(mbo);

        return err;
 }
 
        return err;
 }