Hello Ross Zwisler,
This is a semi-automatic email about new static checker warnings.
The patch 047fc8a1f9a6: "libnvdimm, nfit, nd_blk: driver for BLK-mode
access persistent memory" from Jun 25, 2015, leads to the following
Smatch complaint:
drivers/acpi/nfit.c:1224 acpi_nfit_blk_region_enable()
error: we previously assumed 'nfit_mem' could be null (see line 1223)
drivers/acpi/nfit.c
1222 nfit_mem = nvdimm_provider_data(nvdimm);
1223 if (!nfit_mem || !nfit_mem->dcr || !nfit_mem->bdw) {
^^^^^^^^
Check.
1224 dev_dbg(dev, "%s: missing%s%s%s\n", __func__,
1225 nfit_mem ? "" : " nfit_mem",
1226 nfit_mem->dcr ? "" : " dcr",
^^^^^^^^^^^^^
Unchecked dereference.
regards,
dan carpenter
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