Fwd: New Defects reported by Coverity Scan for Das U-Boot

[Tom Rini]

I think unfortunately the report email for when I merged in -next was
lost somewhere / wasn't sent. I may be able to get the details out the
dashboard.

---------- Forwarded message ---------
From: <scan-admin at coverity.com>
Date: Fri, Oct 10, 2025 at 7:08 PM
Subject: New Defects reported by Coverity Scan for Das U-Boot
To: <tom.rini at gmail.com>


Hi,

Please find the latest report on new defect(s) introduced to *Das U-Boot*
found with Coverity Scan.

   - *New Defects Found:* 1
   - *Defects Shown:* Showing 1 of 1 defect(s)

Defect Details

** CID 537478:       Integer handling issues  (OVERFLOW_BEFORE_WIDEN)
/drivers/spi/spi-mem.c: 528           in spi_mem_calc_op_duration()


_____________________________________________________________________________________________
*** CID 537478:         Integer handling issues  (OVERFLOW_BEFORE_WIDEN)
/drivers/spi/spi-mem.c: 528             in spi_mem_calc_op_duration()
522     	ncycles += ((op->addr.nbytes * 8) / op->addr.buswidth) /
(op->addr.dtr ? 2 : 1);
523
524     	/* Dummy bytes are optional for some SPI flash memory operations */
525     	if (op->dummy.nbytes)
526     		ncycles += ((op->dummy.nbytes * 8) / op->dummy.buswidth) /
(op->dummy.dtr ? 2 : 1);
527
>>>     CID 537478:         Integer handling issues  (OVERFLOW_BEFORE_WIDEN)
>>>     Potentially overflowing expression "op->data.nbytes * 8U" with type "unsigned int" (32 bits, unsigned) is evaluated using 32-bit arithmetic, and then used in a context that expects an expression of type "u64" (64 bits, unsigned).
528     	ncycles += ((op->data.nbytes * 8) / op->data.buswidth) /
(op->data.dtr ? 2 : 1);
529
530     	return ncycles;
531     }
532     EXPORT_SYMBOL_GPL(spi_mem_calc_op_duration);
533

View Defects in Coverity Scan
<https://scan.coverity.com/projects/das-u-boot?tab=overview>

Best regards,

The Coverity Scan Admin Team

----- End forwarded message -----

-- 
Tom
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