sandbox: Correct compiler warnings in cmd_bootm/cmd_ximg

Correct the following warnings found with sandbox when compression
is enabled.

cmd_bootm.c: In function 'bootm_load_os':
cmd_bootm.c:443:11: warning: passing argument 4 of 'lzop_decompress' from incompatible pointer type [enabled by default]
/usr/local/google/c/cosarm/src/third_party/u-boot/files/include/linux/lzo.h:31:5: note: expected 'size_t *' but argument is of type 'uint *'
cmd_ximg.c: In function 'do_imgextract':
cmd_ximg.c:225:6: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
cmd_ximg.c:225:14: warning: 'hdr' may be used uninitialized in this function [-Wuninitialized]

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Kees Cook <keescook@chromium.org>

common/cmd_bootm.c

@@ -436,11 +436,12 @@ static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end,
 	}
 #endif /* CONFIG_LZMA */
 #ifdef CONFIG_LZO
-	case IH_COMP_LZO:
+	case IH_COMP_LZO: {
+		size_t size;
+
 		printf("   Uncompressing %s ... ", type_name);
 
-		ret = lzop_decompress(image_buf, image_len, load_buf,
-				      &unc_len);
+		ret = lzop_decompress(image_buf, image_len, load_buf, &size);
 		if (ret != LZO_E_OK) {
 			printf("LZO: uncompress or overwrite error %d "
 			      "- must RESET board to recover\n", ret);
@@ -449,8 +450,9 @@ static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end,
 			return BOOTM_ERR_RESET;
 		}
 
-		*load_end = load + unc_len;
+		*load_end = load + size;
 		break;
+	}
 #endif /* CONFIG_LZO */
 	default:
 		printf("Unimplemented compression type %d\n", comp);

common/cmd_ximg.c

@@ -20,6 +20,7 @@
 #include <bzlib.h>
 #endif
 #include <asm/byteorder.h>
+#include <asm/io.h>
 
 #ifndef CONFIG_SYS_XIMG_LEN
 /* use 8MByte as default max gunzip size */
@@ -34,7 +35,7 @@ do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 	ulong		data, len, count;
 	int		verify;
 	int		part = 0;
-	image_header_t	*hdr;
+	image_header_t	*hdr = NULL;
 #if defined(CONFIG_FIT)
 	const char	*uname = NULL;
 	const void*	fit_hdr;
@@ -222,7 +223,7 @@ do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 				 * which requires at most 2300 KB of memory.
 				 */
 				i = BZ2_bzBuffToBuffDecompress(
-					(char *)ntohl(hdr->ih_load),
+					map_sysmem(ntohl(hdr->ih_load), 0),
 					&unc_len, (char *)data, len,
 					CONFIG_SYS_MALLOC_LEN < (4096 * 1024),
 					0);