This reverts commit 8c68c104ea.
It is used for apm821xx, which needs ext2 (not ext4) images for some
devices.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
		
	
		
			
				
	
	
		
			45 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			45 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
Index: genext2fs/genext2fs.c
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===================================================================
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--- genext2fs.orig/genext2fs.c	2011-11-29 17:36:06.000000000 +0100
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+++ genext2fs/genext2fs.c	2011-11-29 17:37:37.000000000 +0100
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@@ -1779,7 +1779,8 @@
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 	assert(nod->i_block[EXT2_DIND_BLOCK] != 0);
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 	for(i = 0; i < BLOCKSIZE/4; i++)
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 		if(nblk > EXT2_IND_BLOCK + BLOCKSIZE/4 + (BLOCKSIZE/4)*i )
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-			swap_block(get_blk(fs, ((uint32*)get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]))[i]));
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+			if (((uint32*)get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]))[i])
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+				swap_block(get_blk(fs, ((uint32*)get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]))[i]));
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 	swap_block(get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]));
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 	if(nblk <= EXT2_IND_BLOCK + BLOCKSIZE/4 + BLOCKSIZE/4 * BLOCKSIZE/4)
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 		return;
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@@ -1792,7 +1793,8 @@
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 				     (BLOCKSIZE/4)*(BLOCKSIZE/4) + 
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 				     i*(BLOCKSIZE/4)*(BLOCKSIZE/4) + 
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 				     j*(BLOCKSIZE/4)) ) 
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-			  swap_block(get_blk(fs,b2[j]));
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+			  if (b2[j])
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+			  	swap_block(get_blk(fs,b2[j]));
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 			else {
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 			  done = 1;
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 			  break;
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@@ -1825,7 +1827,8 @@
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 	swap_block(get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]));
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 	for(i = 0; i < BLOCKSIZE/4; i++)
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 		if(nblk > EXT2_IND_BLOCK + BLOCKSIZE/4 + (BLOCKSIZE/4)*i )
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-			swap_block(get_blk(fs, ((uint32*)get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]))[i]));
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+			if (((uint32*)get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]))[i])
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+				swap_block(get_blk(fs, ((uint32*)get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]))[i]));
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 	if(nblk <= EXT2_IND_BLOCK + BLOCKSIZE/4 + BLOCKSIZE/4 * BLOCKSIZE/4)
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 		return;
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 	/* Adding support for triple indirection */
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@@ -1839,7 +1842,8 @@
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 				     (BLOCKSIZE/4)*(BLOCKSIZE/4) + 
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 				     i*(BLOCKSIZE/4)*(BLOCKSIZE/4) + 
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 				     j*(BLOCKSIZE/4)) ) 
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-			  swap_block(get_blk(fs,b2[j]));
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+			  if (b2[j])
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+				swap_block(get_blk(fs,b2[j]));
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 			else {
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 			  done = 1;
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 			  break;
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