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path: root/drivers/firmware/efi/capsule.c
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Diffstat (limited to 'drivers/firmware/efi/capsule.c')
-rw-r--r--drivers/firmware/efi/capsule.c29
1 files changed, 11 insertions, 18 deletions
diff --git a/drivers/firmware/efi/capsule.c b/drivers/firmware/efi/capsule.c
index e530540f368c..53b9fd2293ee 100644
--- a/drivers/firmware/efi/capsule.c
+++ b/drivers/firmware/efi/capsule.c
@@ -86,33 +86,26 @@ bool efi_capsule_pending(int *reset_type)
*/
int efi_capsule_supported(efi_guid_t guid, u32 flags, size_t size, int *reset)
{
- efi_capsule_header_t *capsule;
+ efi_capsule_header_t capsule;
+ efi_capsule_header_t *cap_list[] = { &capsule };
efi_status_t status;
u64 max_size;
- int rv = 0;
if (flags & ~EFI_CAPSULE_SUPPORTED_FLAG_MASK)
return -EINVAL;
- capsule = kmalloc(sizeof(*capsule), GFP_KERNEL);
- if (!capsule)
- return -ENOMEM;
-
- capsule->headersize = capsule->imagesize = sizeof(*capsule);
- memcpy(&capsule->guid, &guid, sizeof(efi_guid_t));
- capsule->flags = flags;
+ capsule.headersize = capsule.imagesize = sizeof(capsule);
+ memcpy(&capsule.guid, &guid, sizeof(efi_guid_t));
+ capsule.flags = flags;
- status = efi.query_capsule_caps(&capsule, 1, &max_size, reset);
- if (status != EFI_SUCCESS) {
- rv = efi_status_to_err(status);
- goto out;
- }
+ status = efi.query_capsule_caps(cap_list, 1, &max_size, reset);
+ if (status != EFI_SUCCESS)
+ return efi_status_to_err(status);
if (size > max_size)
- rv = -ENOSPC;
-out:
- kfree(capsule);
- return rv;
+ return -ENOSPC;
+
+ return 0;
}
EXPORT_SYMBOL_GPL(efi_capsule_supported);