Hello H Hartley Sweeten,
This is a semi-automatic email about new static checker warnings.
The patch 27034e8ace5a: "staging: comedi: me_daq: store the pci_dev
in the comedi_device" from Jul 18, 2012, leads to the following
Smatch complaint:
drivers/staging/comedi/drivers/me_daq.c:797 me_detach()
error: we previously assumed 'dev_private' could be null (see line 788)
drivers/staging/comedi/drivers/me_daq.c
787
788 if (dev_private) {
^^^^^^^^^^^
Old check.
789 if (dev_private->me_regbase) {
790 me_reset(dev);
791 iounmap(dev_private->me_regbase);
792 }
793 if (dev_private->plx_regbase)
794 iounmap(dev_private->plx_regbase);
795 }
796 if (pcidev) {
797 if (dev_private->plx_regbase_size)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This dereference was previously under the check but the patch moves it
outside.
798 comedi_pci_disable(pcidev);
799 pci_dev_put(pcidev);
regards,
dan carpenter
See also:
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