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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2010-12-03 15:32:21 +0200
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-01-26 10:14:23 +0200
commit2fff570e7c8f97e411cd852d64b77b92d9ab8da9 (patch)
tree4f5ad38da8a911a887422c9ecef97644cf8e07d9 /drivers/mtd/ubi/io.c
parente8cfe009436f9ab6f4234e1f7c406c231747925c (diff)
UBI: add a commentary about allocating VID header buffer on stack
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd/ubi/io.c')
-rw-r--r--drivers/mtd/ubi/io.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index 668d24005106..65915a649861 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -480,6 +480,13 @@ static int nor_erase_prepare(struct ubi_device *ubi, int pnum)
size_t written;
loff_t addr;
uint32_t data = 0;
+ /*
+ * Note, we cannot generally define VID header buffers on stack,
+ * because of the way we deal with these buffers (see the header
+ * comment in this file). But we know this is a NOR-specific piece of
+ * code, so we can do this. But yes, this is error-prone and we should
+ * (pre-)allocate VID header buffer instead.
+ */
struct ubi_vid_hdr vid_hdr;
/*