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path: root/drivers/firmware/efi/libstub/efi-stub.c
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Diffstat (limited to 'drivers/firmware/efi/libstub/efi-stub.c')
-rw-r--r--drivers/firmware/efi/libstub/efi-stub.c49
1 files changed, 20 insertions, 29 deletions
diff --git a/drivers/firmware/efi/libstub/efi-stub.c b/drivers/firmware/efi/libstub/efi-stub.c
index 382b54f40603..874f63b4a383 100644
--- a/drivers/firmware/efi/libstub/efi-stub.c
+++ b/drivers/firmware/efi/libstub/efi-stub.c
@@ -10,6 +10,7 @@
*/
#include <linux/efi.h>
+#include <linux/screen_info.h>
#include <asm/efi.h>
#include "efistub.h"
@@ -53,25 +54,16 @@ void __weak free_screen_info(struct screen_info *si)
static struct screen_info *setup_graphics(void)
{
- efi_guid_t gop_proto = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID;
- efi_status_t status;
- unsigned long size;
- void **gop_handle = NULL;
- struct screen_info *si = NULL;
+ struct screen_info *si, tmp = {};
- size = 0;
- status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL,
- &gop_proto, NULL, &size, gop_handle);
- if (status == EFI_BUFFER_TOO_SMALL) {
- si = alloc_screen_info();
- if (!si)
- return NULL;
- status = efi_setup_gop(si, &gop_proto, size);
- if (status != EFI_SUCCESS) {
- free_screen_info(si);
- return NULL;
- }
- }
+ if (efi_setup_gop(&tmp) != EFI_SUCCESS)
+ return NULL;
+
+ si = alloc_screen_info();
+ if (!si)
+ return NULL;
+
+ *si = tmp;
return si;
}
@@ -112,8 +104,8 @@ static u32 get_supported_rt_services(void)
efi_status_t efi_handle_cmdline(efi_loaded_image_t *image, char **cmdline_ptr)
{
+ char *cmdline __free(efi_pool) = NULL;
efi_status_t status;
- char *cmdline;
/*
* Get the command line from EFI, using the LOADED_IMAGE
@@ -128,25 +120,24 @@ efi_status_t efi_handle_cmdline(efi_loaded_image_t *image, char **cmdline_ptr)
if (!IS_ENABLED(CONFIG_CMDLINE_FORCE)) {
status = efi_parse_options(cmdline);
- if (status != EFI_SUCCESS)
- goto fail_free_cmdline;
+ if (status != EFI_SUCCESS) {
+ efi_err("Failed to parse EFI load options\n");
+ return status;
+ }
}
if (IS_ENABLED(CONFIG_CMDLINE_EXTEND) ||
IS_ENABLED(CONFIG_CMDLINE_FORCE) ||
cmdline[0] == 0) {
status = efi_parse_options(CONFIG_CMDLINE);
- if (status != EFI_SUCCESS)
- goto fail_free_cmdline;
+ if (status != EFI_SUCCESS) {
+ efi_err("Failed to parse built-in command line\n");
+ return status;
+ }
}
- *cmdline_ptr = cmdline;
+ *cmdline_ptr = no_free_ptr(cmdline);
return EFI_SUCCESS;
-
-fail_free_cmdline:
- efi_err("Failed to parse options\n");
- efi_bs_call(free_pool, cmdline);
- return status;
}
efi_status_t efi_stub_common(efi_handle_t handle,