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Zhihao Cheng authored
There exists mtd devices with zero erasesize, which will trigger a divide-by-zero exception while attaching ubi device. Fix it by refusing attaching if mtd's erasesize is 0. Fixes: 801c135c ("UBI: Unsorted Block Images") Reported-by: Yu Hao <yhao016@ucr.edu> Link: https://lore.kernel.org/lkml/977347543.226888.1682011999468.JavaMail.zimbra@nod.at/T/Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Richard Weinberger <richard@nod.at>
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