diff options
Diffstat (limited to 'drivers/acpi/acpi_configfs.c')
| -rw-r--r-- | drivers/acpi/acpi_configfs.c | 54 |
1 files changed, 27 insertions, 27 deletions
diff --git a/drivers/acpi/acpi_configfs.c b/drivers/acpi/acpi_configfs.c index 76b83b181356..c970792b11a4 100644 --- a/drivers/acpi/acpi_configfs.c +++ b/drivers/acpi/acpi_configfs.c @@ -70,7 +70,7 @@ static inline struct acpi_table_header *get_header(struct config_item *cfg) if (!table->header) pr_err("table not loaded\n"); - return table->header; + return table->header ?: ERR_PTR(-EINVAL); } static ssize_t acpi_table_aml_read(struct config_item *cfg, @@ -78,8 +78,8 @@ static ssize_t acpi_table_aml_read(struct config_item *cfg, { struct acpi_table_header *h = get_header(cfg); - if (!h) - return -EINVAL; + if (IS_ERR(h)) + return PTR_ERR(h); if (data) memcpy(data, h, h->length); @@ -100,60 +100,60 @@ static ssize_t acpi_table_signature_show(struct config_item *cfg, char *str) { struct acpi_table_header *h = get_header(cfg); - if (!h) - return -EINVAL; + if (IS_ERR(h)) + return PTR_ERR(h); - return sprintf(str, "%.*s\n", ACPI_NAMESEG_SIZE, h->signature); + return sysfs_emit(str, "%.*s\n", ACPI_NAMESEG_SIZE, h->signature); } static ssize_t acpi_table_length_show(struct config_item *cfg, char *str) { struct acpi_table_header *h = get_header(cfg); - if (!h) - return -EINVAL; + if (IS_ERR(h)) + return PTR_ERR(h); - return sprintf(str, "%d\n", h->length); + return sysfs_emit(str, "%d\n", h->length); } static ssize_t acpi_table_revision_show(struct config_item *cfg, char *str) { struct acpi_table_header *h = get_header(cfg); - if (!h) - return -EINVAL; + if (IS_ERR(h)) + return PTR_ERR(h); - return sprintf(str, "%d\n", h->revision); + return sysfs_emit(str, "%d\n", h->revision); } static ssize_t acpi_table_oem_id_show(struct config_item *cfg, char *str) { struct acpi_table_header *h = get_header(cfg); - if (!h) - return -EINVAL; + if (IS_ERR(h)) + return PTR_ERR(h); - return sprintf(str, "%.*s\n", ACPI_OEM_ID_SIZE, h->oem_id); + return sysfs_emit(str, "%.*s\n", ACPI_OEM_ID_SIZE, h->oem_id); } static ssize_t acpi_table_oem_table_id_show(struct config_item *cfg, char *str) { struct acpi_table_header *h = get_header(cfg); - if (!h) - return -EINVAL; + if (IS_ERR(h)) + return PTR_ERR(h); - return sprintf(str, "%.*s\n", ACPI_OEM_TABLE_ID_SIZE, h->oem_table_id); + return sysfs_emit(str, "%.*s\n", ACPI_OEM_TABLE_ID_SIZE, h->oem_table_id); } static ssize_t acpi_table_oem_revision_show(struct config_item *cfg, char *str) { struct acpi_table_header *h = get_header(cfg); - if (!h) - return -EINVAL; + if (IS_ERR(h)) + return PTR_ERR(h); - return sprintf(str, "%d\n", h->oem_revision); + return sysfs_emit(str, "%d\n", h->oem_revision); } static ssize_t acpi_table_asl_compiler_id_show(struct config_item *cfg, @@ -161,10 +161,10 @@ static ssize_t acpi_table_asl_compiler_id_show(struct config_item *cfg, { struct acpi_table_header *h = get_header(cfg); - if (!h) - return -EINVAL; + if (IS_ERR(h)) + return PTR_ERR(h); - return sprintf(str, "%.*s\n", ACPI_NAMESEG_SIZE, h->asl_compiler_id); + return sysfs_emit(str, "%.*s\n", ACPI_NAMESEG_SIZE, h->asl_compiler_id); } static ssize_t acpi_table_asl_compiler_revision_show(struct config_item *cfg, @@ -172,10 +172,10 @@ static ssize_t acpi_table_asl_compiler_revision_show(struct config_item *cfg, { struct acpi_table_header *h = get_header(cfg); - if (!h) - return -EINVAL; + if (IS_ERR(h)) + return PTR_ERR(h); - return sprintf(str, "%d\n", h->asl_compiler_revision); + return sysfs_emit(str, "%d\n", h->asl_compiler_revision); } CONFIGFS_ATTR_RO(acpi_table_, signature); |