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From: Fabio Estevam <festevam@gmail.com>
To: david.oberhollenzer@sigma-star.at, Richard Weinberger <richard@nod.at>
Cc: linux-mtd <linux-mtd@lists.infradead.org>,
	 Miquel Raynal <miquel.raynal@bootlin.com>,
	Marek Vasut <marex@denx.de>, Heiko Schocher <hs@denx.de>
Subject: mtd-utils: Proper way to handle erasize=0
Date: Mon, 19 Jul 2021 16:12:26 -0300	[thread overview]
Message-ID: <CAOMZO5BX9iYmZwBBGEstbcWpvftRNExtwq+kX_rQff0v_o1P5g@mail.gmail.com> (raw)

Hi,

When using a Microchip 48l640 SRAM (drivers/mtd/devices/mchp48l640.c)
the reported erasesize is 0:

# cat /proc/mtd
dev:    size   erasesize  name
mtd0: 00002000 00000000 "spi0.0"

This causes a division by zero at libmtd.c, as mtd_get_dev_info1() has:

mtd->eb_cnt = mtd->size / mtd->eb_size;

What would be the appropriate way to fix this?

Thanks,

Fabio Estevam

______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

             reply	other threads:[~2021-07-19 19:13 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-19 19:12 Fabio Estevam [this message]
2021-07-19 19:36 ` mtd-utils: Proper way to handle erasize=0 Richard Weinberger
2021-07-19 22:20   ` Fabio Estevam
2021-07-19 22:33     ` Richard Weinberger

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