[pull] master from linux-nvme:master#245
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wdc_get_pci_ids() returns an error if it fails to retieve the PCI device ID. In that case, device_id remains uninitialized, and using it later in wdc_log_page_directory() results in undefined behavior. Check the return value from wdc_get_pci_ids() and bail out early if the PCI ID lookup fails. This issue was reported by the clang static analyzer. Signed-off-by: Sarah Ahmed <sarah.ahmed@ibm.com>
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