Without the patch, the following gcc-12 compiler warnings are emitted
for lkcd_*.c:
lkcd_v1.c: In function 'dump_lkcd_environment_v1':
lkcd_v1.c:252:20: warning: the comparison will always evaluate as 'true' for the address of 'dh_panic_string' will never be NULL [-Waddress]
252 | dh && dh->dh_panic_string &&
| ^~
In file included from lkcd_v1.c:21:
lkcd_vmdump_v1.h:108:30: note: 'dh_panic_string' declared here
108 | char dh_panic_string[DUMP_PANIC_LEN];
| ^~~~~~~~~~~~~~~
...
Reported-by: Lianbo Jiang <lijiang@redhat.com>
Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
