i7core_edac: Fix an oops at i7core probe

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>

diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c
index 4a12961c5ef6f4f53bbc4ac399e9e3a16c440328..915835339d7cc3d62590c29638f2436d44874bc4 100644 (file)
--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -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
@@ -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: