thermal: intel: hfi: Improve the type of hfi_features::nr_table_pages

A Coverity static code scan raised a potential overflow_before_widen
warning when hfi_features::nr_table_pages is used as an argument to
memcpy in intel_hfi_process_event().

Even though the overflow can never happen (the maximum number of pages of
the HFI table is 0x10 and 0x10 << PAGE_SHIFT = 0x10000), using size_t as
the data type of hfi_features::nr_table_pages makes Coverity happy and
matches the data type of the argument 'size' of memcpy().

Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/thermal/intel/intel_hfi.c b/drivers/thermal/intel/intel_hfi.c
index a0640f7..239afe0 100644 (file)
--- a/drivers/thermal/intel/intel_hfi.c
+++ b/drivers/thermal/intel/intel_hfi.c
@@ -137,7 +137,7 @@ struct hfi_instance {
  * Parameters and supported features that are common to all HFI instances
  */
 struct hfi_features {
-       unsigned int    nr_table_pages;
+       size_t          nr_table_pages;
        unsigned int    cpu_stride;
        unsigned int    hdr_size;
 };