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-rw-r--r--drivers/mtd/nand/nand_util.c3
-rw-r--r--include/nand.h4
2 files changed, 6 insertions, 1 deletions
diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c
index 762ac53287..e4ef8588a7 100644
--- a/drivers/mtd/nand/nand_util.c
+++ b/drivers/mtd/nand/nand_util.c
@@ -461,6 +461,9 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
#ifdef CONFIG_CMD_NAND_YAFFS
if (flags & WITH_YAFFS_OOB) {
+ if (flags & ~WITH_YAFFS_OOB)
+ return -EINVAL;
+
int pages;
pages = nand->erasesize / nand->writesize;
blocksize = (pages * nand->oobsize) + nand->erasesize;
diff --git a/include/nand.h b/include/nand.h
index b0a31b8f02..c5818f179d 100644
--- a/include/nand.h
+++ b/include/nand.h
@@ -115,7 +115,9 @@ typedef struct nand_erase_options nand_erase_options_t;
int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
u_char *buffer);
-#define WITH_YAFFS_OOB (1 << 0) /* whether write with yaffs format */
+#define WITH_YAFFS_OOB (1 << 0) /* whether write with yaffs format. This flag
+ * is a 'mode' meaning it cannot be mixed with
+ * other flags */
int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
u_char *buffer, int flags);