drivers/gpu/drm/bridge/fsl-ldb.c:101: possible loss of information.

[David Binderman]

Hello there,

I just ran the static analyser "cppcheck" over the source code of linux-6.2-rc1. It said:

linux-6.3-rc1/drivers/gpu/drm/bridge/fsl-ldb.c:101:3: style: int result is returned as long value. If the return value is long to avoid loss of information, then you have loss of information. [truncLongCastReturn]

Source code is

static unsigned long fsl_ldb_link_frequency(struct fsl_ldb *fsl_ldb, int clock)
{
    if (fsl_ldb->lvds_dual_link)
        return clock * 3500;
    else
        return clock * 7000;
}

Depending on the range of the value of clock, maybe unsigned long literals, like 3500UL, should
have been used ?

Regards

David Binderman