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authorKyungmin Park <kyungmin.park@samsung.com>2010-04-28 17:46:46 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-05-14 01:49:48 +0100
commit4a8ce0b030716b95004a4ace969953bc3ad7d2fe (patch)
treef14bd6118d84a81a71daf17b0c08e9112dec2e17 /drivers/mtd
parent6a88c47bd528cb0f82692986a3ca57b3695d9c60 (diff)
mtd: onenand: allocate verify buffer in the core
This patch extends OneNAND core code with support for OneNAND verify write check. This is done by allocating the buffer for verify read directly from the core code. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/onenand/onenand_base.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 1b26f50e159a..045811f21497 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -3932,6 +3932,13 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
__func__);
return -ENOMEM;
}
+#ifdef CONFIG_MTD_ONENAND_VERIFY_WRITE
+ this->verify_buf = kzalloc(mtd->writesize, GFP_KERNEL);
+ if (!this->verify_buf) {
+ kfree(this->page_buf);
+ return -ENOMEM;
+ }
+#endif
this->options |= ONENAND_PAGEBUF_ALLOC;
}
if (!this->oob_buf) {
@@ -4059,8 +4066,12 @@ void onenand_release(struct mtd_info *mtd)
kfree(this->bbm);
}
/* Buffers allocated by onenand_scan */
- if (this->options & ONENAND_PAGEBUF_ALLOC)
+ if (this->options & ONENAND_PAGEBUF_ALLOC) {
kfree(this->page_buf);
+#ifdef CONFIG_MTD_ONENAND_VERIFY_WRITE
+ kfree(this->verify_buf);
+#endif
+ }
if (this->options & ONENAND_OOBBUF_ALLOC)
kfree(this->oob_buf);
kfree(mtd->eraseregions);