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| author | Ezequiel Garcia <elezegarcia@gmail.com> | 2012-11-23 08:58:05 -0300 |
|---|---|---|
| committer | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-12-03 13:54:14 +0200 |
| commit | d856c13c11d81dfa545f927db8d31663d45bbc94 (patch) | |
| tree | 7253bc3605cbfb66a502ea54f62927a14e041d2c /drivers/mtd/ubi | |
| parent | 38f92cca8aae5b2e4ff2700c47eee0b807e22980 (diff) | |
| download | op-kernel-dev-d856c13c11d81dfa545f927db8d31663d45bbc94.zip op-kernel-dev-d856c13c11d81dfa545f927db8d31663d45bbc94.tar.gz | |
UBI: replace memcpy with struct assignment
This kind of memcpy() is error-prone. Its replacement with a struct
assignment is prefered because it's type-safe and much easier to read.
Found by coccinelle. Hand patched and reviewed.
Tested by compilation only.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
identifier struct_name;
struct struct_name to;
struct struct_name from;
expression E;
@@
-memcpy(&(to), &(from), E);
+to = from;
// </smpl>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Diffstat (limited to 'drivers/mtd/ubi')
| -rw-r--r-- | drivers/mtd/ubi/build.c | 3 | ||||
| -rw-r--r-- | drivers/mtd/ubi/upd.c | 6 | ||||
| -rw-r--r-- | drivers/mtd/ubi/vmt.c | 2 |
3 files changed, 4 insertions, 7 deletions
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index 344b4cb..fb59604 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -825,8 +825,7 @@ static int autoresize(struct ubi_device *ubi, int vol_id) * No available PEBs to re-size the volume, clear the flag on * flash and exit. */ - memcpy(&vtbl_rec, &ubi->vtbl[vol_id], - sizeof(struct ubi_vtbl_record)); + vtbl_rec = ubi->vtbl[vol_id]; err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec); if (err) ubi_err("cannot clean auto-resize flag for volume %d", diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c index 9f2ebd8..ec2c2dc 100644 --- a/drivers/mtd/ubi/upd.c +++ b/drivers/mtd/ubi/upd.c @@ -64,8 +64,7 @@ static int set_update_marker(struct ubi_device *ubi, struct ubi_volume *vol) return 0; } - memcpy(&vtbl_rec, &ubi->vtbl[vol->vol_id], - sizeof(struct ubi_vtbl_record)); + vtbl_rec = ubi->vtbl[vol->vol_id]; vtbl_rec.upd_marker = 1; mutex_lock(&ubi->device_mutex); @@ -93,8 +92,7 @@ static int clear_update_marker(struct ubi_device *ubi, struct ubi_volume *vol, dbg_gen("clear update marker for volume %d", vol->vol_id); - memcpy(&vtbl_rec, &ubi->vtbl[vol->vol_id], - sizeof(struct ubi_vtbl_record)); + vtbl_rec = ubi->vtbl[vol->vol_id]; ubi_assert(vol->upd_marker && vtbl_rec.upd_marker); vtbl_rec.upd_marker = 0; diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c index 9169e58..99ef8a1 100644 --- a/drivers/mtd/ubi/vmt.c +++ b/drivers/mtd/ubi/vmt.c @@ -535,7 +535,7 @@ int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs) } /* Change volume table record */ - memcpy(&vtbl_rec, &ubi->vtbl[vol_id], sizeof(struct ubi_vtbl_record)); + vtbl_rec = ubi->vtbl[vol_id]; vtbl_rec.reserved_pebs = cpu_to_be32(reserved_pebs); err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec); if (err) |
