Messages in this thread Patch in this message |  | | From | Ezequiel Garcia <> | Subject | [PATCH 20/23] dvb-core: Replace memcpy with struct assignment | Date | Tue, 23 Oct 2012 16:57:23 -0300 |
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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> --- drivers/media/dvb-core/dvb_frontend.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c index 7e92793..c770464 100644 --- a/drivers/media/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb-core/dvb_frontend.c @@ -2256,7 +2256,7 @@ static int dvb_frontend_ioctl_legacy(struct file *file, printk("%s switch command: 0x%04lx\n", __func__, swcmd); do_gettimeofday(&nexttime); if (dvb_frontend_debug) - memcpy(&tv[0], &nexttime, sizeof(struct timeval)); + tv[0] = nexttime; /* before sending a command, initialize by sending * a 32ms 18V to the switch */ -- 1.7.4.4
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