diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-4.4/001-4.11-01-mtd-m25p80-consider-max-message-size-in-m25p80_read.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-4.4/001-4.11-01-mtd-m25p80-consider-max-message-size-in-m25p80_read.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-4.4/001-4.11-01-mtd-m25p80-consider-max-message-size-in-m25p80_read.patch b/target/linux/brcm63xx/patches-4.4/001-4.11-01-mtd-m25p80-consider-max-message-size-in-m25p80_read.patch new file mode 100644 index 0000000..e902701 --- /dev/null +++ b/target/linux/brcm63xx/patches-4.4/001-4.11-01-mtd-m25p80-consider-max-message-size-in-m25p80_read.patch @@ -0,0 +1,30 @@ +From 80a79a889ce5df16c5261ab2f1e8e63b94b78102 Mon Sep 17 00:00:00 2001 +From: Heiner Kallweit <hkallweit1@gmail.com> +Date: Fri, 28 Oct 2016 07:58:46 +0200 +Subject: [PATCH 1/8] mtd: m25p80: consider max message size in m25p80_read + +Consider a message size limit when calculating the maximum amount +of data that can be read. + +The message size limit has been introduced with 4.9, so cc it +to stable. + +Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> +Cc: <stable@vger.kernel.org> # 4.9.x +Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> +--- + drivers/mtd/devices/m25p80.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/drivers/mtd/devices/m25p80.c ++++ b/drivers/mtd/devices/m25p80.c +@@ -172,7 +172,8 @@ static ssize_t m25p80_read(struct spi_no + + t[1].rx_buf = buf; + t[1].rx_nbits = m25p80_rx_nbits(nor); +- t[1].len = min(len, spi_max_transfer_size(spi)); ++ t[1].len = min3(len, spi_max_transfer_size(spi), ++ spi_max_message_size(spi) - t[0].len); + spi_message_add_tail(&t[1], &m); + + ret = spi_sync(spi, &m); |