[PATCH 08/24] drivers/firmware: return actual error on sysfs init

[Jeff Liu]

From: Jie Liu <jeff....@oracle.com>

This patch fix all sysfs init functions under firmware subsystems
to return the actual error if call kset_create_and_add() failed.

Cc: Stefan Richter <stef...@s5r6.in-berlin.de>
Signed-off-by: Jie Liu <jeff....@oracle.com>
---
 drivers/firmware/dmi-sysfs.c       | 4 +++-
 drivers/firmware/edd.c             | 4 ++--
 drivers/firmware/efi/efivars.c     | 4 ++--
 drivers/firmware/efi/runtime-map.c | 4 ++--
 drivers/firmware/memmap.c          | 4 ++--
 5 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/firmware/dmi-sysfs.c b/drivers/firmware/dmi-sysfs.c
index e0f1cb3..9e867f4 100644
--- a/drivers/firmware/dmi-sysfs.c
+++ b/drivers/firmware/dmi-sysfs.c
@@ -657,8 +657,10 @@ static int __init dmi_sysfs_init(void)
                goto err;
 
        dmi_kset = kset_create_and_add("entries", NULL, dmi_kobj);
-       if (!dmi_kset)
+       if (IS_ERR(dmi_kset)) {
+               error = PTR_ERR(dmi_kset);
                goto err;
+       }
 
        val = 0;
        error = dmi_walk(dmi_sysfs_register_handle, &val);
diff --git a/drivers/firmware/edd.c b/drivers/firmware/edd.c
index e229576..c3bc8f1 100644
--- a/drivers/firmware/edd.c
+++ b/drivers/firmware/edd.c
@@ -757,8 +757,8 @@ edd_init(void)
        }
 
        edd_kset = kset_create_and_add("edd", NULL, firmware_kobj);
-       if (!edd_kset)
-               return -ENOMEM;
+       if (IS_ERR(edd_kset))
+               return PTR_ERR(edd_kset);
 
        for (i = 0; i < edd_num_devices(); i++) {
                edev = kzalloc(sizeof (*edev), GFP_KERNEL);
diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
index 463c565..057568f 100644
--- a/drivers/firmware/efi/efivars.c
+++ b/drivers/firmware/efi/efivars.c
@@ -730,9 +730,9 @@ int efivars_sysfs_init(void)
               EFIVARS_DATE);
 
        efivars_kset = kset_create_and_add("vars", NULL, parent_kobj);
-       if (!efivars_kset) {
+       if (IS_ERR(efivars_kset)) {
                printk(KERN_ERR "efivars: Subsystem registration failed.\n");
-               return -ENOMEM;
+               return PTR_ERR(efivars_kset);
        }
 
        efivar_init(efivars_sysfs_callback, NULL, false,
diff --git a/drivers/firmware/efi/runtime-map.c 
b/drivers/firmware/efi/runtime-map.c
index 97cdd16..df881b1 100644
--- a/drivers/firmware/efi/runtime-map.c
+++ b/drivers/firmware/efi/runtime-map.c
@@ -113,8 +113,8 @@ add_sysfs_runtime_map_entry(struct kobject *kobj, int nr)
 
        if (!map_kset) {
                map_kset = kset_create_and_add("runtime-map", NULL, kobj);
-               if (!map_kset)
-                       return ERR_PTR(-ENOMEM);
+               if (IS_ERR(map_kset))
+                       return ERR_CAST(map_kset);
        }
 
        entry = kzalloc(sizeof(*entry), GFP_KERNEL);
diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
index 17cf96c..23e40c9 100644
--- a/drivers/firmware/memmap.c
+++ b/drivers/firmware/memmap.c
@@ -186,8 +186,8 @@ static int add_sysfs_fw_map_entry(struct firmware_map_entry 
*entry)
 
        if (!mmap_kset) {
                mmap_kset = kset_create_and_add("memmap", NULL, firmware_kobj);
-               if (!mmap_kset)
-                       return -ENOMEM;
+               if (IS_ERR(mmap_kset))
+                       return PTR_ERR(mmap_kset);
        }
 
        entry->kobj.kset = mmap_kset;
-- 
1.8.3.2
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