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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Peter Jones <pjones@redhat.com>
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Date: Wed, 24 May 2017 15:58:18 -0400
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Subject: [PATCH] Clean up some errors in the linuxefi loader
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Signed-off-by: Peter Jones <pjones@redhat.com>
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---
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grub-core/loader/i386/efi/linux.c | 16 ++++++++--------
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1 file changed, 8 insertions(+), 8 deletions(-)
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diff --git a/grub-core/loader/i386/efi/linux.c b/grub-core/loader/i386/efi/linux.c
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index c123afad19c..7166ec17f8f 100644
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--- a/grub-core/loader/i386/efi/linux.c
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+++ b/grub-core/loader/i386/efi/linux.c
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@@ -161,8 +161,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
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int argc, char *argv[])
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{
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grub_file_t file = 0;
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- struct linux_kernel_header *lh;
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- grub_ssize_t len, start, filelen;
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+ struct linux_kernel_header *lh = NULL;
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+ grub_ssize_t start, filelen;
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void *kernel = NULL;
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int setup_header_end_offset;
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int rc;
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@@ -212,18 +212,19 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
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goto fail;
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}
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- grub_dprintf ("linuxefi", "params = %p\n", (unsigned long) params);
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+ grub_dprintf ("linuxefi", "params = %p\n", params);
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grub_memset (params, 0, sizeof(*params));
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setup_header_end_offset = *((grub_uint8_t *)kernel + 0x201);
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grub_dprintf ("linuxefi", "copying %lu bytes from %p to %p\n",
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- MIN(0x202+setup_header_end_offset,sizeof (*params)) - 0x1f1,
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+ MIN((grub_size_t)0x202+setup_header_end_offset,
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+ sizeof (*params)) - 0x1f1,
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(grub_uint8_t *)kernel + 0x1f1,
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(grub_uint8_t *)params + 0x1f1);
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grub_memcpy ((grub_uint8_t *)params + 0x1f1,
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(grub_uint8_t *)kernel + 0x1f1,
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- MIN(0x202+setup_header_end_offset,sizeof (*params)) - 0x1f1);
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+ MIN((grub_size_t)0x202+setup_header_end_offset,sizeof (*params)) - 0x1f1);
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lh = (struct linux_kernel_header *)params;
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grub_dprintf ("linuxefi", "lh is at %p\n", lh);
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grub_dprintf ("linuxefi", "checking lh->boot_flag\n");
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@@ -254,7 +255,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
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goto fail;
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}
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-#ifdef defined(__x86_64__) || defined(__aarch64__)
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+#if defined(__x86_64__) || defined(__aarch64__)
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grub_dprintf ("linuxefi", "checking lh->xloadflags\n");
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if (!(lh->xloadflags & LINUX_XLF_KERNEL_64))
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{
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@@ -298,7 +299,6 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
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handover_offset = lh->handover_offset;
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start = (lh->setup_sects + 1) * 512;
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- len = grub_file_size(file) - start;
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kernel_mem = grub_efi_allocate_pages(lh->pref_address,
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BYTES_TO_PAGES(lh->init_size));
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@@ -344,7 +344,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
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loaded = 0;
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}
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- if (linux_cmdline && !loaded)
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+ if (linux_cmdline && lh && !loaded)
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grub_efi_free_pages ((grub_efi_physical_address_t)(grub_addr_t)
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linux_cmdline,
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BYTES_TO_PAGES(lh->cmdline_size + 1));
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