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-rw-r--r--drivers/acpi/apei/erst.c2
-rw-r--r--drivers/firmware/efivars.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index 2ca59dc69f7f..5e820ea35570 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -1165,7 +1165,7 @@ static int __init erst_init(void)
goto err_release_erange;
buf = kmalloc(erst_erange.size, GFP_KERNEL);
- mutex_init(&erst_info.buf_mutex);
+ spin_lock_init(&erst_info.buf_lock);
if (buf) {
erst_info.buf = buf + sizeof(struct cper_pstore_record);
erst_info.bufsize = erst_erange.size -
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index eb80b549ed8d..be8bcb035e2a 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -978,7 +978,7 @@ int register_efivars(struct efivars *efivars,
if (efivars->efi_pstore_info.buf) {
efivars->efi_pstore_info.bufsize = 1024;
efivars->efi_pstore_info.data = efivars;
- mutex_init(&efivars->efi_pstore_info.buf_mutex);
+ spin_lock_init(&efivars->efi_pstore_info.buf_lock);
pstore_register(&efivars->efi_pstore_info);
}