From 8bdc0c77919ddb9bd588ac45e96c96497683f76c Mon Sep 17 00:00:00 2001 From: Peter Jones Date: Wed, 24 May 2017 15:58:18 -0400 Subject: [PATCH] Clean up some errors in the linuxefi loader Signed-off-by: Peter Jones --- grub-core/loader/i386/efi/linux.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/grub-core/loader/i386/efi/linux.c b/grub-core/loader/i386/efi/linux.c index bed5919cab3..6db5d0bf3a0 100644 --- a/grub-core/loader/i386/efi/linux.c +++ b/grub-core/loader/i386/efi/linux.c @@ -161,8 +161,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), int argc, char *argv[]) { grub_file_t file = 0; - struct linux_kernel_header *lh; - grub_ssize_t len, start, filelen; + struct linux_kernel_header *lh = NULL; + grub_ssize_t start, filelen; void *kernel = NULL; int setup_header_end_offset; int rc; @@ -212,18 +212,19 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), goto fail; } - grub_dprintf ("linuxefi", "params = %p\n", (unsigned long) params); + grub_dprintf ("linuxefi", "params = %p\n", params); grub_memset (params, 0, sizeof(*params)); setup_header_end_offset = *((grub_uint8_t *)kernel + 0x201); - grub_dprintf ("linuxefi", "copying %d bytes from %p to %p\n", - MIN(0x202+setup_header_end_offset,sizeof (*params)) - 0x1f1, + grub_dprintf ("linuxefi", "copying %zu bytes from %p to %p\n", + MIN((grub_size_t)0x202+setup_header_end_offset, + sizeof (*params)) - 0x1f1, (grub_uint8_t *)kernel + 0x1f1, (grub_uint8_t *)params + 0x1f1); grub_memcpy ((grub_uint8_t *)params + 0x1f1, (grub_uint8_t *)kernel + 0x1f1, - MIN(0x202+setup_header_end_offset,sizeof (*params)) - 0x1f1); + MIN((grub_size_t)0x202+setup_header_end_offset,sizeof (*params)) - 0x1f1); lh = (struct linux_kernel_header *)params; grub_dprintf ("linuxefi", "lh is at %p\n", lh); grub_dprintf ("linuxefi", "checking lh->boot_flag\n"); @@ -297,7 +298,6 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), handover_offset = lh->handover_offset; start = (lh->setup_sects + 1) * 512; - len = grub_file_size(file) - start; kernel_mem = grub_efi_allocate_pages_max(lh->pref_address, BYTES_TO_PAGES(lh->init_size)); @@ -343,7 +343,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), loaded = 0; } - if (linux_cmdline && !loaded) + if (linux_cmdline && lh && !loaded) grub_efi_free_pages ((grub_efi_physical_address_t)(grub_addr_t) linux_cmdline, BYTES_TO_PAGES(lh->cmdline_size + 1));