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[Qemu-devel] [PULL 12/22] hw/i386/multiboot.c: Don't use load_image()


From: Peter Maydell
Subject: [Qemu-devel] [PULL 12/22] hw/i386/multiboot.c: Don't use load_image()
Date: Fri, 14 Dec 2018 14:42:04 +0000

The load_image() function is deprecated, as it does not let the
caller specify how large the buffer to read the file into is.
Instead use load_image_size().

While we are converting the code, add the missing error check.

Signed-off-by: Peter Maydell <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
Reviewed-by: Stefan Hajnoczi <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Message-id: address@hidden
---
 hw/i386/multiboot.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/hw/i386/multiboot.c b/hw/i386/multiboot.c
index 1a4344f5fc3..62340687e8e 100644
--- a/hw/i386/multiboot.c
+++ b/hw/i386/multiboot.c
@@ -343,7 +343,11 @@ int load_multiboot(FWCfgState *fw_cfg,
             mbs.mb_buf_size = TARGET_PAGE_ALIGN(mb_mod_length + 
mbs.mb_buf_size);
             mbs.mb_buf = g_realloc(mbs.mb_buf, mbs.mb_buf_size);
 
-            load_image(one_file, (unsigned char *)mbs.mb_buf + offs);
+            if (load_image_size(one_file, (unsigned char *)mbs.mb_buf + offs,
+                                mbs.mb_buf_size - offs) < 0) {
+                error_report("Error loading file '%s'", one_file);
+                exit(1);
+            }
             mb_add_mod(&mbs, mbs.mb_buf_phys + offs,
                        mbs.mb_buf_phys + offs + mb_mod_length, c);
 
-- 
2.19.2




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