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.se...@gmail.com> Signed-off-by: Ezequiel Garcia <elezegar...@gmail.com> --- drivers/media/pci/cx88/cx88-cards.c | 2 +- drivers/media/pci/cx88/cx88-i2c.c | 3 +-- drivers/media/pci/cx88/cx88-vp3054-i2c.c | 3 +-- 3 files changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/media/pci/cx88/cx88-cards.c b/drivers/media/pci/cx88/cx88-cards.c index 0c25524..e2e0b8f 100644 --- a/drivers/media/pci/cx88/cx88-cards.c +++ b/drivers/media/pci/cx88/cx88-cards.c @@ -3743,7 +3743,7 @@ struct cx88_core *cx88_core_create(struct pci_dev *pci, int nr) cx88_card_list(core, pci); } - memcpy(&core->board, &cx88_boards[core->boardnr], sizeof(core->board)); + core->board = cx88_boards[core->boardnr]; if (!core->board.num_frontends && (core->board.mpeg & CX88_MPEG_DVB)) core->board.num_frontends = 1; diff --git a/drivers/media/pci/cx88/cx88-i2c.c b/drivers/media/pci/cx88/cx88-i2c.c index de0f1af..cf2d696 100644 --- a/drivers/media/pci/cx88/cx88-i2c.c +++ b/drivers/media/pci/cx88/cx88-i2c.c @@ -139,8 +139,7 @@ int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci) if (i2c_udelay<5) i2c_udelay=5; - memcpy(&core->i2c_algo, &cx8800_i2c_algo_template, - sizeof(core->i2c_algo)); + core->i2c_algo = cx8800_i2c_algo_template; core->i2c_adap.dev.parent = &pci->dev; diff --git a/drivers/media/pci/cx88/cx88-vp3054-i2c.c b/drivers/media/pci/cx88/cx88-vp3054-i2c.c index d77f8ec..deede6e 100644 --- a/drivers/media/pci/cx88/cx88-vp3054-i2c.c +++ b/drivers/media/pci/cx88/cx88-vp3054-i2c.c @@ -118,8 +118,7 @@ int vp3054_i2c_probe(struct cx8802_dev *dev) return -ENOMEM; dev->vp3054 = vp3054_i2c; - memcpy(&vp3054_i2c->algo, &vp3054_i2c_algo_template, - sizeof(vp3054_i2c->algo)); + vp3054_i2c->algo = vp3054_i2c_algo_template; vp3054_i2c->adap.dev.parent = &dev->pci->dev; strlcpy(vp3054_i2c->adap.name, core->name, -- 1.7.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
