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i7core_edac: Fix an oops at i7core probe
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changeset c91d57ba9ce5b5c93a7077e2f72510eb1f9131c4 moved the init
of the priv pointer to the end of the probe routine. However, we need
them before that, otherwise, we hit an OOPS:

[   67.743453] EDAC DEBUG: mci_bind_devs: Associated fn 0.0, dev = ffff88011b46e000, socket 0
[   67.751861] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
[   67.759685] IP: [<ffffffffa017e484>] i7core_probe+0x979/0x130c [i7core_edac]
[   67.766721] PGD 10bd38067 PUD 10bd37067 PMD 0
[   67.771178] Oops: 0000 [#1] SMP
[   67.774414] last sysfs file: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map
[   67.782213] CPU 1
[   67.784042] Modules linked in: i7core_edac(+) edac_core cpufreq_ondemand binfmt_misc dm_multipath video output pci_slot snd_hda_codd

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Mauro Carvalho Chehab committed Oct 24, 2010
1 parent 21b6806 commit 6d37d24
Showing 1 changed file with 4 additions and 4 deletions.
8 changes: 4 additions & 4 deletions drivers/edac/i7core_edac.c
Original file line number Diff line number Diff line change
Expand Up @@ -1968,6 +1968,10 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev)
pvt = mci->pvt_info;
memset(pvt, 0, sizeof(*pvt));

/* Associates i7core_dev and mci for future usage */
pvt->i7core_dev = i7core_dev;
i7core_dev->mci = mci;

/*
* FIXME: how to handle RDDR3 at MCI level? It is possible to have
* Mixed RDDR3/UDDR3 with Nehalem, provided that they are on different
Expand Down Expand Up @@ -2033,10 +2037,6 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev)
goto fail1;
}

/* Associates i7core_dev and mci for future usage */
pvt->i7core_dev = i7core_dev;
i7core_dev->mci = mci;

return 0;

fail1:
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