fix: silence Coverity UNUSED_VALUE in __create_descriptor_1d

The value returned by DftiFreeDescriptor on the reallocate path is
consumed only by a debug-only assert(status == 0). Under NDEBUG the
assert is stripped, so the store is dead before the unconditional
status = 0 reset, which Coverity flags as UNUSED_VALUE (one CID per
.c.src template instantiation). Mark the value as intentionally unused
with (void)status to make the intent explicit and clear the finding.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: antonwolfy

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 ### Fixed
+* Silenced a Coverity `UNUSED_VALUE` finding in `__create_descriptor_1d` by marking the `DftiFreeDescriptor` status (used only by a debug-only `assert`) as intentionally unused
 
 ## [2.3.2] - 2026-08-04
 

mkl_fft/src/mklfft.c.src

@@ -170,6 +170,7 @@ __create_descriptor_1d_@prec@_@domain@(MKL_LONG len, @sc_t@ fsc, @sc_t@ bsc, Dft
     if(dfti_cache->hand) {
         status = DftiFreeDescriptor(&(dfti_cache->hand));
         assert(status == 0);
+        (void)status;  /* used only by assert; ignored under NDEBUG */
     }
 
     status = 0;