New Defects reported by Coverity Scan for NetBSD-i386-kernel

[scan-admin%coverity.com@localhost]

Hi,

Please find the latest report on new defect(s) introduced to NetBSD-i386-kernel found with Coverity Scan.

2 new defect(s) introduced to NetBSD-i386-kernel found with Coverity Scan.
2 defect(s), reported by Coverity Scan earlier, were marked fixed in the recent build analyzed by Coverity Scan.

New defect(s) Reported-by: Coverity Scan
Showing 2 of 2 defect(s)


** CID 1348151:  Integer handling issues  (CONSTANT_EXPRESSION_RESULT)
/sys/dev/pci/ismt.c: 743 in ismt_attach()


________________________________________________________________________________________________________
*** CID 1348151:  Integer handling issues  (CONSTANT_EXPRESSION_RESULT)
/sys/dev/pci/ismt.c: 743 in ismt_attach()
737     	    sc->dma_buffer_dma_map, sc->dma_buffer, DMA_BUFFER_SIZE,
738     	    NULL, 0);
739     
740     	bus_space_write_4(sc->mmio_tag, sc->mmio_handle, ISMT_MSTR_MDBA,
741     	    ISMT_LOW(sc->desc_dma_map->dm_segs[0].ds_addr));
742     	bus_space_write_4(sc->mmio_tag, sc->mmio_handle, ISMT_MSTR_MDBA + 4,
>>>     CID 1348151:  Integer handling issues  (CONSTANT_EXPRESSION_RESULT)
>>>     "(__uint64_t)sc->desc_dma_map->dm_segs[0].ds_addr >> 32" is 0 regardless of the values of its operands. This occurs as the bitwise first operand of '&'.
743     	    ISMT_HIGH(sc->desc_dma_map->dm_segs[0].ds_addr));
744     
745     	/* initialize the Master Control Register (MCTRL) */
746     	bus_space_write_4(sc->mmio_tag, sc->mmio_handle, ISMT_MSTR_MCTRL,
747     	    ISMT_MCTRL_MEIE);
748     

** CID 1348152:  Integer handling issues  (CONSTANT_EXPRESSION_RESULT)
/sys/dev/pci/ismt.c: 371 in ismt_submit()


________________________________________________________________________________________________________
*** CID 1348152:  Integer handling issues  (CONSTANT_EXPRESSION_RESULT)
/sys/dev/pci/ismt.c: 371 in ismt_submit()
365     	desc->control |= ISMT_DESC_FAIR;
366     	if ((flags & I2C_F_POLL) == 0)
367     		desc->control |= ISMT_DESC_INT;
368     
369     	desc->tgtaddr_rw = ISMT_DESC_ADDR_RW(slave, is_read);
370     	desc->dptr_low = ISMT_LOW(sc->dma_buffer_dma_map->dm_segs[0].ds_addr);
>>>     CID 1348152:  Integer handling issues  (CONSTANT_EXPRESSION_RESULT)
>>>     "(__uint64_t)sc->dma_buffer_dma_map->dm_segs[0].ds_addr >> 32" is 0 regardless of the values of its operands. This occurs as the bitwise first operand of '&'.
371     	desc->dptr_high = ISMT_HIGH(sc->dma_buffer_dma_map->dm_segs[0].ds_addr);
372     
373     	bus_dmamap_sync(sc->desc_dma_tag, sc->desc_dma_map,
374     	    desc - &sc->desc[0], sizeof(struct ismt_desc),
375     	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
376     


________________________________________________________________________________________________________
To view the defects in Coverity Scan visit, https://scan.coverity.com/projects/netbsd-i386-kernel?tab=overview

To manage Coverity Scan email notifications for "coverity-updates%netbsd.org@localhost", click https://scan.coverity.com/subscriptions/edit?email=coverity-updates%40netbsd.org&token=487286ca1a9a4f4bd485d16f66b5e782