module/crypto: fix one missing free() in error path

Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: I28b6c149ea341bbacf0d884c1bb0a7287076c9c9
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/483530
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Alexey Marchuk <alexeymar@mellanox.com>

module/bdev/crypto/vbdev_crypto.c

@@ -1437,6 +1437,7 @@ vbdev_crypto_insert_name(const char *bdev_name, const char *vbdev_name,
 
 	/* Error cleanup paths. */
 error_invalid_key:
+	free(name->key);
 error_alloc_key:
 error_invalid_pmd:
 	free(name->drv_name);