[SCSI] sd: Do not call do_div() with a 64-bit divisor
do_div() is meant for divisions of 64-bit number by 32-bit numbers.
Passing 64-bit divisor types caused issues in the past on 32-bit platforms,
cfr. commit ea077b1b96
("m68k: Truncate base
in do_div()").
As scsi_device.sector_size is unsigned (int), factor should be unsigned
int, too.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Родитель
b28d108b7f
Коммит
ef80d1e18b
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@ -1626,7 +1626,7 @@ static unsigned int sd_completed_bytes(struct scsi_cmnd *scmd)
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end_lba <<= 1;
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} else {
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/* be careful ... don't want any overflows */
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u64 factor = scmd->device->sector_size / 512;
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unsigned int factor = scmd->device->sector_size / 512;
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do_div(start_lba, factor);
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do_div(end_lba, factor);
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}
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