Re: question about fs/jffs2/readinode.c

From: Julia Lawall
Date: Wed May 02 2012 - 08:27:10 EST


On Wed, 2 May 2012, Artem Bityutskiy wrote:

On Sat, 2012-04-28 at 07:06 +0200, Julia Lawall wrote:
The function read_direntry in fs/jffs2/readinode.c contains the following
code:

err = jffs2_flash_read(c, (ref_offset(ref)) + read,
rd->nsize - already, &read, &fd->name[already]);
if (unlikely(read != rd->nsize - already) && likely(!err))
return -EIO;

if (unlikely(err)) {
JFFS2_ERROR("read remainder of name: error %d\n", err);
jffs2_free_full_dirent(fd);
return -EIO;
}

Is it intentional that the first if doesn't free fd? At first I thought
that that might be the case, because what would be the point of having two
conditionals if they are going to do the same thing. But I can't see why
fd should not be freed either, so maybe the two conditionals are just
there to give different error messages?

Hi Julia,

I think this is a bug and thes conditionals can be joined into one.

Thanks! I will send a patch soon.

julia
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