CVE-2024-56567 ad7780: fix division by zero in ad7780_write_raw()

In the Linux kernel, the following vulnerability has been resolved: ad7780: fix division by zero in ad7780writeraw In the ad7780writeraw , val2 can be zero, which might lead to a division by zero error in DIVROUNDCLOSEST. The ad7780writeraw is based on iioinfo's writeraw. While val is explicitly...