CVE-2024-50289

In the Linux kernel, the following vulnerability has been resolved:

media: av7110: fix a spectre vulnerability

As warned by smatch:
drivers/staging/media/av7110/av7110_ca.c:270 dvb_ca_ioctl() warn: potential spectre issue 'av7110->ci_slot' [w] (local cap)

There is a spectre-related vulnerability at the code. Fix it.