[PATCH 17/18] drx-j: Use kmemdup instead of kmalloc + memcpy

From: Benoit Taine
Date: Mon May 26 2014 - 11:23:31 EST


This issue was reported by coccicheck using the semantic patch
at scripts/coccinelle/api/memdup.cocci

Signed-off-by: Benoit Taine <benoit.taine@xxxxxxx>
---
Not compile tested.

drivers/media/dvb-frontends/drx39xyj/drxj.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/media/dvb-frontends/drx39xyj/drxj.c b/drivers/media/dvb-frontends/drx39xyj/drxj.c
index 9482954..3795f65 100644
--- a/drivers/media/dvb-frontends/drx39xyj/drxj.c
+++ b/drivers/media/dvb-frontends/drx39xyj/drxj.c
@@ -12272,22 +12272,20 @@ struct dvb_frontend *drx39xxj_attach(struct i2c_adapter *i2c)
if (demod == NULL)
goto error;

- demod_addr = kmalloc(sizeof(struct i2c_device_addr), GFP_KERNEL);
+ demod_addr = kmemdup(&drxj_default_addr_g,
+ sizeof(struct i2c_device_addr), GFP_KERNEL);
if (demod_addr == NULL)
goto error;
- memcpy(demod_addr, &drxj_default_addr_g,
- sizeof(struct i2c_device_addr));

- demod_comm_attr = kmalloc(sizeof(struct drx_common_attr), GFP_KERNEL);
+ demod_comm_attr = kmemdup(&drxj_default_comm_attr_g,
+ sizeof(struct drx_common_attr), GFP_KERNEL);
if (demod_comm_attr == NULL)
goto error;
- memcpy(demod_comm_attr, &drxj_default_comm_attr_g,
- sizeof(struct drx_common_attr));

- demod_ext_attr = kmalloc(sizeof(struct drxj_data), GFP_KERNEL);
+ demod_ext_attr = kmemdup(&drxj_data_g, sizeof(struct drxj_data),
+ GFP_KERNEL);
if (demod_ext_attr == NULL)
goto error;
- memcpy(demod_ext_attr, &drxj_data_g, sizeof(struct drxj_data));

/* setup the state */
state->i2c = i2c;

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/