From: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Date: Fri, 3 Feb 2012 07:53:28 +0000 (+0200)
Subject: mtd: lart: initialize writebufsize
X-Git-Tag: firefly_0821_release~7541^2~1436
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a4585d8f7a51e32175eed9cdcb85bbe7df84e035;p=firefly-linux-kernel-4.4.55.git

mtd: lart: initialize writebufsize

commit fcc44a07dae0af16e84e93425fc8afe642ddc603 upstream.

The writebufsize concept was introduce by commit
"0e4ca7e mtd: add writebufsize field to mtd_info struct" and it represents
the maximum amount of data the device writes to the media at a time. This is
an important parameter for UBIFS which is used during recovery and which
basically defines how big a corruption caused by a power cut can be.

Set writebufsize to 4 because this drivers writes at max 4 bytes at a time.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/mtd/devices/lart.c b/drivers/mtd/devices/lart.c
index 772a0ff89e0f..09d5b5aaea57 100644
--- a/drivers/mtd/devices/lart.c
+++ b/drivers/mtd/devices/lart.c
@@ -636,6 +636,7 @@ static int __init lart_flash_init (void)
    mtd.name = module_name;
    mtd.type = MTD_NORFLASH;
    mtd.writesize = 1;
+   mtd.writebufsize = 4;
    mtd.flags = MTD_CAP_NORFLASH;
    mtd.size = FLASH_BLOCKSIZE_PARAM * FLASH_NUMBLOCKS_16m_PARAM + FLASH_BLOCKSIZE_MAIN * FLASH_NUMBLOCKS_16m_MAIN;
    mtd.erasesize = FLASH_BLOCKSIZE_MAIN;