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authorMilton Miller <miltonm@bga.com>2007-03-29 07:31:41 -0600
committerPaul Mackerras <paulus@samba.org>2007-04-13 03:55:17 +1000
commit02cc51149f99e3c6c106e1e16dcc2e016b1bc3b5 (patch)
tree911e09a9aad7536f778cb27264b45f08f99cf0d3
parent1383a34fafeb9f49975fc33783960729fbd2cddf (diff)
downloadlinux-2.6.34-ux500-02cc51149f99e3c6c106e1e16dcc2e016b1bc3b5.tar.gz
[POWERPC] bootwrapper: Decompress less, check more
Our kernels put everything in the first load segment, and we read that. Instead of decompressing to the end of the gzip stream or supplied image and hoping we get it all, decompress the expected size and complain if it is not available. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
-rw-r--r--arch/powerpc/boot/main.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/boot/main.c b/arch/powerpc/boot/main.c
index 30390621203..56b56a8d4b2 100644
--- a/arch/powerpc/boot/main.c
+++ b/arch/powerpc/boot/main.c
@@ -79,7 +79,10 @@ static struct addr_range prep_kernel(void)
vmlinuz_addr, vmlinuz_addr+vmlinuz_size);
/* discard up to the actual load data */
gunzip_discard(&gzstate, ei.elfoffset - sizeof(elfheader));
- len = gunzip_finish(&gzstate, addr, ei.memsize);
+ len = gunzip_finish(&gzstate, addr, ei.loadsize);
+ if (len != ei.loadsize)
+ fatal("ran out of data! only got 0x%x of 0x%lx bytes.\n\r",
+ len, ei.loadsize);
printf("done 0x%x bytes\n\r", len);
flush_cache(addr, ei.loadsize);