aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-05 14:57:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-05 14:57:04 -0700
commit5136a6c0fd5b26bbf39ad761cf7a4fc563ad83a3 (patch)
tree7c905238cb2c5c9cd959cd652010b0eaf5f91db3
parente505a8d5f96a84f3043ce0c4eaee8f045996896c (diff)
parentbc8cec0dff072f1a45ce7f6b2c5234bb3411ac51 (diff)
downloadlinux-stericsson-5136a6c0fd5b26bbf39ad761cf7a4fc563ad83a3.tar.gz
Merge git://git.infradead.org/~dwmw2/mtd-2.6.31
* git://git.infradead.org/~dwmw2/mtd-2.6.31: JFFS2: add missing verify buffer allocation/deallocation mtd: nftl: fix offset alignments mtd: nftl: write support is broken mtd: m25p80: fix null pointer dereference bug
-rw-r--r--drivers/mtd/devices/m25p80.c2
-rw-r--r--drivers/mtd/nftlcore.c15
-rw-r--r--fs/jffs2/wbuf.c10
3 files changed, 20 insertions, 7 deletions
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index ae5fe91867e1..10ed195c0c1c 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -736,7 +736,7 @@ static int __devinit m25p_probe(struct spi_device *spi)
flash->partitioned = 1;
return add_mtd_partitions(&flash->mtd, parts, nr_parts);
}
- } else if (data->nr_parts)
+ } else if (data && data->nr_parts)
dev_warn(&spi->dev, "ignoring %d default partitions on %s\n",
data->nr_parts, data->name);
diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c
index fb86cacd5bdb..1002e1882996 100644
--- a/drivers/mtd/nftlcore.c
+++ b/drivers/mtd/nftlcore.c
@@ -135,16 +135,17 @@ static void nftl_remove_dev(struct mtd_blktrans_dev *dev)
int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
size_t *retlen, uint8_t *buf)
{
+ loff_t mask = mtd->writesize - 1;
struct mtd_oob_ops ops;
int res;
ops.mode = MTD_OOB_PLACE;
- ops.ooboffs = offs & (mtd->writesize - 1);
+ ops.ooboffs = offs & mask;
ops.ooblen = len;
ops.oobbuf = buf;
ops.datbuf = NULL;
- res = mtd->read_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
+ res = mtd->read_oob(mtd, offs & ~mask, &ops);
*retlen = ops.oobretlen;
return res;
}
@@ -155,16 +156,17 @@ int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
size_t *retlen, uint8_t *buf)
{
+ loff_t mask = mtd->writesize - 1;
struct mtd_oob_ops ops;
int res;
ops.mode = MTD_OOB_PLACE;
- ops.ooboffs = offs & (mtd->writesize - 1);
+ ops.ooboffs = offs & mask;
ops.ooblen = len;
ops.oobbuf = buf;
ops.datbuf = NULL;
- res = mtd->write_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
+ res = mtd->write_oob(mtd, offs & ~mask, &ops);
*retlen = ops.oobretlen;
return res;
}
@@ -177,17 +179,18 @@ int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
static int nftl_write(struct mtd_info *mtd, loff_t offs, size_t len,
size_t *retlen, uint8_t *buf, uint8_t *oob)
{
+ loff_t mask = mtd->writesize - 1;
struct mtd_oob_ops ops;
int res;
ops.mode = MTD_OOB_PLACE;
- ops.ooboffs = offs;
+ ops.ooboffs = offs & mask;
ops.ooblen = mtd->oobsize;
ops.oobbuf = oob;
ops.datbuf = buf;
ops.len = len;
- res = mtd->write_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
+ res = mtd->write_oob(mtd, offs & ~mask, &ops);
*retlen = ops.retlen;
return res;
}
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index d9a721e6db70..5ef7bac265e5 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -1268,10 +1268,20 @@ int jffs2_nor_wbuf_flash_setup(struct jffs2_sb_info *c) {
if (!c->wbuf)
return -ENOMEM;
+#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY
+ c->wbuf_verify = kmalloc(c->wbuf_pagesize, GFP_KERNEL);
+ if (!c->wbuf_verify) {
+ kfree(c->wbuf);
+ return -ENOMEM;
+ }
+#endif
return 0;
}
void jffs2_nor_wbuf_flash_cleanup(struct jffs2_sb_info *c) {
+#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY
+ kfree(c->wbuf_verify);
+#endif
kfree(c->wbuf);
}