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| author |   Fuqian Huang <huangfq.daxian@gmail.com> | 2019-07-03 13:28:37 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-08-14 05:03:30 -0300 |
| commit | f6af820ef1be58c2e4b81aa479b9f109eb6344ce (patch) | |
| tree | 6ac93f72465ce7b8eb28a84e1e7436f26d5f5f26 /drivers/media/dvb-frontends | |
| parent | media: media/tuners: Use kmemdup rather than duplicating its implementation (diff) | |
| download | wireguard-linux-f6af820ef1be58c2e4b81aa479b9f109eb6344ce.tar.xz wireguard-linux-f6af820ef1be58c2e4b81aa479b9f109eb6344ce.zip | |
media: media/dvb: Use kmemdup rather than duplicating its implementation
kmemdup is introduced to duplicate a region of memory in a neat way.
Rather than kmalloc/kzalloc + memcpy, which the programmer needs to
write the size twice (sometimes lead to mistakes), kmemdup improves
readability, leads to smaller code and also reduce the chances of mistakes.
Suggestion to use kmemdup rather than using kmalloc/kzalloc + memcpy.
Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/dvb-frontends')
| -rw-r--r-- | drivers/media/dvb-frontends/drx39xyj/drxj.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/media/dvb-frontends/drx39xyj/drxj.c b/drivers/media/dvb-frontends/drx39xyj/drxj.c index a6876fa48753..2f5af4813a74 100644 --- a/drivers/media/dvb-frontends/drx39xyj/drxj.c +++ b/drivers/media/dvb-frontends/drx39xyj/drxj.c @@ -12287,7 +12287,8 @@ struct dvb_frontend *drx39xxj_attach(struct i2c_adapter *i2c) if (state == NULL) goto error; - demod = kmalloc(sizeof(struct drx_demod_instance), GFP_KERNEL); + demod = kmemdup(&drxj_default_demod_g, + sizeof(struct drx_demod_instance), GFP_KERNEL); if (demod == NULL) goto error; @@ -12311,8 +12312,6 @@ struct dvb_frontend *drx39xxj_attach(struct i2c_adapter *i2c) state->demod = demod; /* setup the demod data */ - memcpy(demod, &drxj_default_demod_g, sizeof(struct drx_demod_instance)); - demod->my_i2c_dev_addr = demod_addr; demod->my_common_attr = demod_comm_attr; demod->my_i2c_dev_addr->user_data = state; |