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mtd: rawnand: diskonchip: Make sure doc2001plus_readbuf() works for single byte reads

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Single byte accesses normally go through read_byte() but we are about
to use this function in the exec_op() implementation and thus needs to
prepare for single byte reads.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200501143917.1388957-2-boris.brezillon@collabora.com
This commit is contained in:
Boris Brezillon 2020-05-01 16:39:13 +02:00 committed by Miquel Raynal
parent dace12ccfd
commit a50b0c20be
1 changed files with 6 additions and 3 deletions
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9
drivers/mtd/nand/raw/diskonchip.c
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@ -550,9 +550,12 @@ static void doc2001plus_readbuf(struct nand_chip *this, u_char *buf, int len)
}
/* Terminate read pipeline */
buf[len - 2] = ReadDOC(docptr, Mplus_LastDataRead);
if (debug && i < 16)
printk("%02x ", buf[len - 2]);
if (len >= 2) {
buf[len - 2] = ReadDOC(docptr, Mplus_LastDataRead);
if (debug && i < 16)
printk("%02x ", buf[len - 2]);
}
buf[len - 1] = ReadDOC(docptr, Mplus_LastDataRead);
if (debug && i < 16)
printk("%02x ", buf[len - 1]);