49 	struct buffer_head *bh;  in get_block_length()  local
51 	bh = sb_bread(sb, *cur_index);  in get_block_length()
52 	if (bh == NULL)  in get_block_length()
56 		*length = (unsigned char) bh->b_data[*offset];  in get_block_length()
57 		put_bh(bh);  in get_block_length()
58 		bh = sb_bread(sb, ++(*cur_index));  in get_block_length()
59 		if (bh == NULL)  in get_block_length()
61 		*length |= (unsigned char) bh->b_data[0] << 8;  in get_block_length()
64 		*length = (unsigned char) bh->b_data[*offset] |  in get_block_length()
65 			(unsigned char) bh->b_data[*offset + 1] << 8;  in get_block_length()
69 			put_bh(bh);  in get_block_length()
70 			bh = sb_bread(sb, ++(*cur_index));  in get_block_length()
71 			if (bh == NULL)  in get_block_length()
77 	return bh;  in get_block_length()
94 	struct buffer_head **bh;  in squashfs_read_data()  local
99 	bh = kcalloc(((output->length + msblk->devblksize - 1)  in squashfs_read_data()
100 		>> msblk->devblksize_log2) + 1, sizeof(*bh), GFP_KERNEL);  in squashfs_read_data()
101 	if (bh == NULL)  in squashfs_read_data()
122 			bh[b] = sb_getblk(sb, cur_index);  in squashfs_read_data()
123 			if (bh[b] == NULL)  in squashfs_read_data()
127 		ll_rw_block(READ, b, bh);  in squashfs_read_data()
135 		bh[0] = get_block_length(sb, &cur_index, &offset, &length);  in squashfs_read_data()
136 		if (bh[0] == NULL)  in squashfs_read_data()
154 			bh[b] = sb_getblk(sb, ++cur_index);  in squashfs_read_data()
155 			if (bh[b] == NULL)  in squashfs_read_data()
159 		ll_rw_block(READ, b - 1, bh + 1);  in squashfs_read_data()
163 		wait_on_buffer(bh[i]);  in squashfs_read_data()
164 		if (!buffer_uptodate(bh[i]))  in squashfs_read_data()
169 		length = squashfs_decompress(msblk, bh, b, offset, length,  in squashfs_read_data()
190 				memcpy(data + pg_offset, bh[k]->b_data + offset,  in squashfs_read_data()
197 			put_bh(bh[k]);  in squashfs_read_data()
202 	kfree(bh);  in squashfs_read_data()
207 		put_bh(bh[k]);  in squashfs_read_data()
212 	kfree(bh);  in squashfs_read_data()