sysupdate: fix bogus return code

2026-05-29T13:44:48.7158429Z In file included from ../src/basic/../fundamental/assert-util.h:8,
2026-05-29T13:44:48.7159224Z                  from ../src/basic/assert-util.h:4,
2026-05-29T13:44:48.7159990Z                  from ../src/basic/basic-forward.h:17,
2026-05-29T13:44:48.7160337Z                  from ../src/basic/alloc-util.h:6,
2026-05-29T13:44:48.7161366Z                  from ../src/sysupdate/sysupdate-transfer.c:9:
2026-05-29T13:44:48.7169020Z ../src/sysupdate/sysupdate-transfer.c: In function ‘transfer_acquire_instance’:
2026-05-29T13:44:48.7169957Z ../src/basic/../fundamental/macro.h:190:37: error: ‘r’ may be used uninitialized [-Werror=maybe-uninitialized]
2026-05-29T13:44:48.7170483Z   190 |                 default:            __builtin_llabs((long long) (a)))
2026-05-29T13:44:48.7171001Z       |                                     ^~~~~~~~~~~~~~~
2026-05-29T13:44:48.7171435Z ../src/basic/log.h:32:46: note: in expansion of macro ‘ABS’
2026-05-29T13:44:48.7171800Z    32 | #define ERRNO_VALUE(val)                    (ABS(val) & ~(1 << 30))
2026-05-29T13:44:48.7172134Z       |                                              ^~~
2026-05-29T13:44:48.7172528Z ../src/basic/log.h:188:28: note: in expansion of macro ‘ERRNO_VALUE’
2026-05-29T13:44:48.7173003Z   188 |                         : -ERRNO_VALUE(_e);                             \
2026-05-29T13:44:48.7173317Z       |                            ^~~~~~~~~~~
2026-05-29T13:44:48.7173779Z ../src/basic/log.h:208:17: note: in expansion of macro ‘log_full_errno_zerook’
2026-05-29T13:44:48.7174204Z   208 |                 log_full_errno_zerook(level, (int)_error, __VA_ARGS__); \
2026-05-29T13:44:48.7174528Z       |                 ^~~~~~~~~~~~~~~~~~~~~
2026-05-29T13:44:48.7174917Z ../src/basic/log.h:233:41: note: in expansion of macro ‘log_full_errno’
2026-05-29T13:44:48.7175401Z   233 | #define log_error_errno(error, ...)     log_full_errno(LOG_ERR,     error, __VA_ARGS__)
2026-05-29T13:44:48.7175799Z       |                                         ^~~~~~~~~~~~~~
2026-05-29T13:44:48.7176318Z ../src/sysupdate/sysupdate-transfer.c:1346:32: note: in expansion of macro ‘log_error_errno’
2026-05-29T13:44:48.7176931Z  1346 |                         return log_error_errno(r, "SHA256 checksum not known for download '%s', refusing.", i->path);
2026-05-29T13:44:48.7177514Z       |                                ^~~~~~~~~~~~~~~
2026-05-29T13:44:48.7178157Z ../src/sysupdate/sysupdate-transfer.c:1270:13: note: ‘r’ was declared here
2026-05-29T13:44:48.7178501Z  1270 |         int r;

Follow-up for 43cc7a3ef4f6a89946e7ffd6a3112a0c1740b1ef

diff --git a/src/sysupdate/sysupdate-transfer.c b/src/sysupdate/sysupdate-transfer.c
index 27756298fa28467275f8e1b4e3f705b7f100bf40..bb9849159261f86b88a07e98ae989e2bbf58ca3f 100644 (file)
--- a/src/sysupdate/sysupdate-transfer.c
+++ b/src/sysupdate/sysupdate-transfer.c
@@ -1343,7 +1343,7 @@ int transfer_acquire_instance(Transfer *t, Instance *i, InstanceMetadata *f, Tra
                  * download. */
 
                 if (!i->metadata.sha256sum_set)
-                        return log_error_errno(r, "SHA256 checksum not known for download '%s', refusing.", i->path);
+                        return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "SHA256 checksum not known for download '%s', refusing.", i->path);
 
                 digest = hexmem(i->metadata.sha256sum, sizeof(i->metadata.sha256sum));
                 if (!digest)