Merge pull request #26322 from keszybz/log-errno-fix

Log errno fix

src/partition/repart.c

@@ -5108,7 +5108,7 @@ static int resolve_copy_blocks_auto(
                                 continue;
                         }
                         if (major(sl) == 0) {
-                                log_debug_errno(r, "Device backing %s is special, ignoring: %m", q);
+                                log_debug("Device backing %s is special, ignoring.", q);
                                 continue;
                         }
 
@@ -5183,11 +5183,12 @@ static int context_open_copy_block_paths(
                                                        "Copying from block device node is not permitted in --image=/--root= mode, refusing.");
 
                 } else if (p->copy_blocks_auto) {
-                        dev_t devno;
+                        dev_t devno = 0;  /* Fake initialization to appease gcc. */
 
                         r = resolve_copy_blocks_auto(p->type, p->copy_blocks_root, restrict_devno, &devno, &uuid);
                         if (r < 0)
                                 return r;
+                        assert(devno != 0);
 
                         source_fd = r = device_open_from_devnum(S_IFBLK, devno, O_RDONLY|O_CLOEXEC|O_NONBLOCK, &opened);
                         if (r < 0)