From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.nokia.com ([131.228.20.171] helo=mgw-ext12.nokia.com) by pentafluge.infradead.org with esmtps (Exim 4.63 #1 (Red Hat Linux)) id 1IgEuM-0000pk-Qz for linux-mtd@lists.infradead.org; Fri, 12 Oct 2007 08:26:09 +0100 Message-ID: <470F1FFE.2090306@nokia.com> Date: Fri, 12 Oct 2007 10:19:26 +0300 From: Adrian Hunter MIME-Version: 1.0 To: ext Kyungmin Park Subject: [PATCH] MTD: OneNAND: Synchronize block locking operations Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-mtd@lists.infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Ensure OneNAND's block locking operations are synchronized like all other operations. Signed-off-by: Adrian Hunter --- drivers/mtd/onenand/onenand_base.c | 18 ++++++++++++++---- 1 files changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index b2c40f6..f633941 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1904,7 +1904,12 @@ static int onenand_do_lock_cmd(struct mtd_info *mtd, loff_t ofs, size_t len, int */ static int onenand_lock(struct mtd_info *mtd, loff_t ofs, size_t len) { - return onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_LOCK); + int ret; + + onenand_get_device(mtd, FL_LOCKING); + ret = onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_LOCK); + onenand_release_device(mtd); + return ret; } /** @@ -1917,7 +1922,12 @@ static int onenand_lock(struct mtd_info *mtd, loff_t ofs, size_t len) */ static int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len) { - return onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_UNLOCK); + int ret; + + onenand_get_device(mtd, FL_LOCKING); + ret = onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_UNLOCK); + onenand_release_device(mtd); + return ret; } /** @@ -1979,7 +1989,7 @@ static int onenand_unlock_all(struct mtd_info *mtd) loff_t ofs = this->chipsize >> 1; size_t len = mtd->erasesize; - onenand_unlock(mtd, ofs, len); + onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_UNLOCK); } onenand_check_lock_status(this); @@ -1987,7 +1997,7 @@ static int onenand_unlock_all(struct mtd_info *mtd) return 0; } - onenand_unlock(mtd, 0x0, this->chipsize); + onenand_do_lock_cmd(mtd, 0x0, this->chipsize, ONENAND_CMD_UNLOCK); return 0; } -- 1.4.4.2