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| author | Sughosh Ganu <sughosh.ganu@arm.com> | 2018-04-26 15:46:49 +0530 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2018-05-02 13:57:49 +0200 |
| commit | a66bdf5d11b0ba8e473ef90ba7e0e6399b5fc825 (patch) | |
| tree | 751641cbbf78318277da3da5cc19366dfdecd2b7 /drivers/edac/ghes_edac.c | |
| parent | cc7f3f132658289b6661ab8294ab08a9d32ea026 (diff) | |
| download | linux-a66bdf5d11b0ba8e473ef90ba7e0e6399b5fc825.tar.bz2 | |
EDAC, ghes: Add a null pointer check in ghes_edac_unregister()
Add a null check for ghes_pvt, before dereferencing it. The pointer
could still be null in case the return path is taken before initialising
ghes_pvt in the registration function.
Reviewed-by: Toshi Kani <toshi.kani@hpe.com>
Signed-off-by: Sughosh Ganu <sughosh.ganu@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: lkml <linux-kernel@vger.kernel.org>
Link: http://lkml.kernel.org/r/1524737809-24475-1-git-send-email-sughosh.ganu@arm.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'drivers/edac/ghes_edac.c')
| -rw-r--r-- | drivers/edac/ghes_edac.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c index 7fdbfe871f5c..758744038d93 100644 --- a/drivers/edac/ghes_edac.c +++ b/drivers/edac/ghes_edac.c @@ -517,6 +517,9 @@ void ghes_edac_unregister(struct ghes *ghes) { struct mem_ctl_info *mci; + if (!ghes_pvt) + return; + mci = ghes_pvt->mci; edac_mc_del_mc(mci->pdev); edac_mc_free(mci); |