i2c: amd-mp2-pci: Fix Oops in amd_mp2_pci_init() error handling
authorDan Carpenter <dan.carpenter@oracle.com>
Tue, 10 Sep 2019 13:42:42 +0000 (16:42 +0300)
committerWolfram Sang <wsa@the-dreams.de>
Thu, 30 Apr 2020 14:11:41 +0000 (16:11 +0200)
The problem is that we dereference "privdata->pci_dev" when we print
the error messages in amd_mp2_pci_init():

dev_err(ndev_dev(privdata), "Failed to enable MP2 PCI device\n");
^^^^^^^^^^^^^^^^^

Fixes: 529766e0a011 ("i2c: Add drivers for the AMD PCIe MP2 I2C controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
drivers/i2c/busses/i2c-amd-mp2-pci.c

index 5e4800d72e00bc5a4c7a5b98294d22f99a093168..cd3fd5ee5f65d28815b9f2e22981f9f44b50b389 100644 (file)
@@ -349,12 +349,12 @@ static int amd_mp2_pci_probe(struct pci_dev *pci_dev,
        if (!privdata)
                return -ENOMEM;
 
+       privdata->pci_dev = pci_dev;
        rc = amd_mp2_pci_init(privdata, pci_dev);
        if (rc)
                return rc;
 
        mutex_init(&privdata->c2p_lock);
-       privdata->pci_dev = pci_dev;
 
        pm_runtime_set_autosuspend_delay(&pci_dev->dev, 1000);
        pm_runtime_use_autosuspend(&pci_dev->dev);