From: Milton Miller Date: Thu, 29 Mar 2007 13:31:41 +0000 (-0600) Subject: [POWERPC] bootwrapper: Decompress less, check more X-Git-Tag: v2.6.22-rc1~1109^2~99 X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=02cc51149f99e3c6c106e1e16dcc2e016b1bc3b5;p=linux-2.6-omap-h63xx.git [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 Signed-off-by: Paul Mackerras --- 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);