Revert "mtd: mtdram: check offs and len in mtdram->erase"

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=d489ff42db9179647004ca2b12c614cb71ac81ea
Commit:     d489ff42db9179647004ca2b12c614cb71ac81ea
Parent:     7827e3acad2df1c6537e5fe7211d216dabc60399
Author:     Brian Norris <computersforpeace at gmail.com>
AuthorDate: Tue Sep 29 17:28:44 2015 -0700
Committer:  Brian Norris <computersforpeace at gmail.com>
CommitDate: Tue Sep 29 17:29:17 2015 -0700

    Revert "mtd: mtdram: check offs and len in mtdram->erase"
    
    This reverts commit 7827e3acad2df1c6537e5fe7211d216dabc60399.
    
    There are some 64-bit arithmetic issues on some architectures, so let's
    wait until we get a better patch for this.
    
    Signed-off-by: Brian Norris <computersforpeace at gmail.com>
---
 drivers/mtd/devices/mtdram.c | 21 ---------------------
 1 file changed, 21 deletions(-)

diff --git a/drivers/mtd/devices/mtdram.c b/drivers/mtd/devices/mtdram.c
index 73fa297..8e28508 100644
--- a/drivers/mtd/devices/mtdram.c
+++ b/drivers/mtd/devices/mtdram.c
@@ -32,29 +32,8 @@ MODULE_PARM_DESC(erase_size, "Device erase block size in KiB");
 // We could store these in the mtd structure, but we only support 1 device..
 static struct mtd_info *mtd_info;
 
-static int check_offs_len(struct mtd_info *mtd, loff_t ofs, uint64_t len)
-{
-	int ret = 0;
-
-	/* Start address must align on block boundary */
-	if (ofs % mtd->erasesize) {
-		pr_debug("%s: unaligned address\n", __func__);
-		ret = -EINVAL;
-	}
-
-	/* Length must align on block boundary */
-	if (len % mtd->erasesize) {
-		pr_debug("%s: length not block aligned\n", __func__);
-		ret = -EINVAL;
-	}
-
-	return ret;
-}
-
 static int ram_erase(struct mtd_info *mtd, struct erase_info *instr)
 {
-	if (check_offs_len(mtd, instr->addr, instr->len))
-		return -EINVAL;
 	memset((char *)mtd->priv + instr->addr, 0xff, instr->len);
 	instr->state = MTD_ERASE_DONE;
 	mtd_erase_callback(instr);