diff --git a/arch/riscv/errata/sifive/errata.c b/arch/riscv/errata/sifive/errata.c
index 5b77d7310e39..c24a349dd026 100644
--- a/arch/riscv/errata/sifive/errata.c
+++ b/arch/riscv/errata/sifive/errata.c
@@ -110,7 +110,7 @@ void __init_or_module sifive_errata_patch_func(struct alt_entry *begin,
 		if (cpu_req_errata & tmp) {
 			mutex_lock(&text_mutex);
 			patch_text_nosync(alt->old_ptr, alt->alt_ptr, alt->alt_len);
-			mutex_lock(&text_mutex);
+			mutex_unlock(&text_mutex);
 			cpu_apply_errata |= tmp;
 		}
 	}