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author | Jesper Juhl <jesper.juhl@gmail.com> | 2008-03-08 02:16:07 +0100 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-03-10 16:38:02 -0700 |
commit | b91aac29bb9b7cab34b0297449bd2a16944b83d9 (patch) | |
tree | dfe8da51342362245fa39943f57c41c1c0aa4ef9 /Documentation | |
parent | 8647af71d623671a020a54d860f77bc0fa2e606e (diff) |
PCI Hotplug: Fix small mem leak in IBM Hot Plug Controller Driver
In drivers/pci/hotplug/ibmphp_ebda.c::ebda_rsrc_controller(), storage is
allocated with kzalloc() and assigned to 'tmp_slot'. Then lots of
stuff, like ->flag, ->supported_speed etc is set in tmp_slot. A bit
further down there's then this test :
if (!bus_info_ptr1) {
rc = -ENODEV;
goto error;
}
At this point, tmp_slot has not been assigned to anything, so when
erroring-out we want to free it, but nothing at the 'error:' label
free's 'tmp_slot' - and we can't really free 'tmp_slot' at 'error:'
since we may jump to that label later when 'tmp_slot' *has* been used
and we do not want it freed. So, the only sane option left seems to be
to kfree(tmp_slot) just before jumping to the 'error:' label in the one
place where this is what actually makes sense. The following patch does
just that and thus kills off a tiny potential memory leak.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions