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| author | Ezequiel Garcia <elezegarcia@gmail.com> | 2012-10-23 15:57:24 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-12-27 19:03:15 -0200 |
| commit | ee45ddc1e03afc221afad273503b6c2fc0683008 (patch) | |
| tree | d3105d347e2817d1839dc1429cf3cc866dfadd5f /drivers | |
| parent | b9b1b3a8f7b76035140912bc9e3a325e58fc6d58 (diff) | |
| download | lwn-ee45ddc1e03afc221afad273503b6c2fc0683008.tar.gz lwn-ee45ddc1e03afc221afad273503b6c2fc0683008.zip | |
[media] dvb-frontends: 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: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/dvb-frontends/cx24116.c | 2 | ||||
| -rw-r--r-- | drivers/media/dvb-frontends/drxd_hard.c | 5 | ||||
| -rw-r--r-- | drivers/media/dvb-frontends/stv0299.c | 2 |
3 files changed, 4 insertions, 5 deletions
diff --git a/drivers/media/dvb-frontends/cx24116.c b/drivers/media/dvb-frontends/cx24116.c index b48879186537..2916d7c74a1d 100644 --- a/drivers/media/dvb-frontends/cx24116.c +++ b/drivers/media/dvb-frontends/cx24116.c @@ -819,7 +819,7 @@ static int cx24116_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) static void cx24116_clone_params(struct dvb_frontend *fe) { struct cx24116_state *state = fe->demodulator_priv; - memcpy(&state->dcur, &state->dnxt, sizeof(state->dcur)); + state->dcur = state->dnxt; } /* Wait for LNB */ diff --git a/drivers/media/dvb-frontends/drxd_hard.c b/drivers/media/dvb-frontends/drxd_hard.c index 487c53b69bf3..9a2134792cfa 100644 --- a/drivers/media/dvb-frontends/drxd_hard.c +++ b/drivers/media/dvb-frontends/drxd_hard.c @@ -2965,7 +2965,7 @@ struct dvb_frontend *drxd_attach(const struct drxd_config *config, return NULL; memset(state, 0, sizeof(*state)); - memcpy(&state->ops, &drxd_ops, sizeof(struct dvb_frontend_ops)); + state->ops = drxd_ops; state->dev = dev; state->config = *config; state->i2c = i2c; @@ -2976,8 +2976,7 @@ struct dvb_frontend *drxd_attach(const struct drxd_config *config, if (Read16(state, 0, 0, 0) < 0) goto error; - memcpy(&state->frontend.ops, &drxd_ops, - sizeof(struct dvb_frontend_ops)); + state->frontend.ops = drxd_ops; state->frontend.demodulator_priv = state; ConfigureMPEGOutput(state, 0); /* add few initialization to allow gate control */ diff --git a/drivers/media/dvb-frontends/stv0299.c b/drivers/media/dvb-frontends/stv0299.c index 92a6075cd82f..b57ecf42e75a 100644 --- a/drivers/media/dvb-frontends/stv0299.c +++ b/drivers/media/dvb-frontends/stv0299.c @@ -420,7 +420,7 @@ static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long do_gettimeofday (&nexttime); if (debug_legacy_dish_switch) - memcpy (&tv[0], &nexttime, sizeof (struct timeval)); + tv[0] = nexttime; stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */ dvb_frontend_sleep_until(&nexttime, 32000); |