mtd: m25p80: read in spi_max_transfer_size chunks

Take into account transfer size limitation of SPI master.

Signed-off-by: Michal Suchanek <hramrach@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Michal Suchanek <hramrach@gmail.com>
Tested-by: Michal Suchanek <hramrach@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index eab46d211ae6..9cf7fcd28034 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -172,7 +172,7 @@ static ssize_t m25p80_read(struct spi_nor *nor, loff_t from, size_t len,
 
         t[1].rx_buf = buf;
         t[1].rx_nbits = m25p80_rx_nbits(nor);
-        t[1].len = len;
+        t[1].len = min(len, spi_max_transfer_size(spi));
         spi_message_add_tail(&t[1], &m);
 
         ret = spi_sync(spi, &m);