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amd64_edac: fix driver instance freeing 

Fix use-after-free errors by pushing all memory-freeing calls to the end
of amd64_remove_one_instance().

Reported-by: Darren Jenkins <darrenrjenkins@gmail.com>
LKML-Reference: <1261370306.11354.52.camel@ICE-BOX>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
This commit is contained in:
Borislav Petkov 2009-12-21 15:15:59 +01:00
parent 603adaf6b3
commit 8f68ed9728
1 changed files with 4 additions and 5 deletions
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9
drivers/edac/amd64_edac.c
View File

@ -2929,16 +2929,15 @@ static void __devexit amd64_remove_one_instance(struct pci_dev *pdev)
amd64_free_mc_sibling_devices(pvt);
kfree(pvt);
mci->pvt_info = NULL;
mci_lookup[pvt->mc_node_id] = NULL;
/* unregister from EDAC MCE */
amd_report_gart_errors(false);
amd_unregister_ecc_decoder(amd64_decode_bus_error);
/* Free the EDAC CORE resources */
mci->pvt_info = NULL;
mci_lookup[pvt->mc_node_id] = NULL;
kfree(pvt);
edac_mc_free(mci);
}