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Subject[2.5] double free in ext2?
Hello!

I am playing with smatch and while testing my improved version of
unfree.pl, I seems to have found a double free condition in ext2:

fs/ext2/super.c::ext2_fill_super() (I am looking at yesterday's 2.5 snapshot)

in line 784 we do kfree(sbi->s_group_desc); (then print "EXT2-fs: unable to read group descriptors\n")
and go to failed_mount_group_desc, which reads (from line 821):
failed_mount_group_desc:
kfree(sbi->s_group_desc);

2.4 is not affected.

Bye,
Oleg
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