Commit 90c31cb9 authored by Boris Brezillon's avatar Boris Brezillon

mtd: spi-nor: Reset nor->addr_width when SFDP parsing failed

Commit 5390a8df ("mtd: spi-nor: add support to non-uniform SFDP SPI
NOR flash memories") removed the 'nor->addr_width = 0;' statement when
spi_nor_parse_sfdp() returns an error, thus leaving ->addr_width in an
undefined state which can cause trouble when spi_nor_scan() checks its
value.
Reported-by: default avatarCyrille Pitchen <cyrille.pitchen@wedev4u.fr>
Fixes: 5390a8df ("mtd: spi-nor: add support to non-uniform SFDP SPI NOR flash memories")
Signed-off-by: default avatarBoris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: default avatarTudor Ambarus <tudor.ambarus@microchip.com>
parent 91d7b670
......@@ -3250,13 +3250,15 @@ static int spi_nor_init_params(struct spi_nor *nor,
memcpy(&sfdp_params, params, sizeof(sfdp_params));
memcpy(&prev_map, &nor->erase_map, sizeof(prev_map));
if (spi_nor_parse_sfdp(nor, &sfdp_params))
if (spi_nor_parse_sfdp(nor, &sfdp_params)) {
nor->addr_width = 0;
/* restore previous erase map */
memcpy(&nor->erase_map, &prev_map,
sizeof(nor->erase_map));
else
} else {
memcpy(params, &sfdp_params, sizeof(*params));
}
}
return 0;
}
......
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