diff options
Diffstat (limited to 'arch/riscv/kernel/cpufeature.c')
| -rw-r--r-- | arch/riscv/kernel/cpufeature.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index 694267d1fe81..fd1238df6149 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -9,6 +9,7 @@ #include <linux/bitmap.h> #include <linux/ctype.h> #include <linux/libfdt.h> +#include <linux/memory.h> #include <linux/module.h> #include <linux/of.h> #include <asm/alternative.h> @@ -316,8 +317,11 @@ void __init_or_module riscv_cpufeature_patch_func(struct alt_entry *begin, } tmp = (1U << alt->errata_id); - if (cpu_req_feature & tmp) + if (cpu_req_feature & tmp) { + mutex_lock(&text_mutex); patch_text_nosync(alt->old_ptr, alt->alt_ptr, alt->alt_len); + mutex_unlock(&text_mutex); + } } } #endif |