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[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>
This commit is contained in:
Ezequiel Garcia 2012-10-23 15:57:24 -03:00 committed by Mauro Carvalho Chehab
parent b9b1b3a8f7
commit ee45ddc1e0
3 changed files with 4 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/media/dvb-frontends/cx24116.c
View File

@ -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 */

5
drivers/media/dvb-frontends/drxd_hard.c
View File

@ -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 */

2
drivers/media/dvb-frontends/stv0299.c
View File

@ -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);