diff options
| author | Jean Delvare <khali@linux-fr.org> | 2008-04-25 20:42:45 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-04-26 09:29:58 -0300 |
| commit | 37c45df740f79c58bb0fc0de151fd2504234032b (patch) | |
| tree | fa67e740835ab5600f078189e4d5e5519eecf059 /drivers/media | |
| parent | b33d24c4cc14ee40d83a7e1ea0bfb9567d6059aa (diff) | |
| download | linux-37c45df740f79c58bb0fc0de151fd2504234032b.tar.gz linux-37c45df740f79c58bb0fc0de151fd2504234032b.tar.bz2 linux-37c45df740f79c58bb0fc0de151fd2504234032b.zip | |
V4L/DVB (7751): ir-kbd-i2c: Save a temporary memory allocation in ir_probe
Using i2c_transfer instead of i2c_master_recv in ir_probe saves a
temporary memory allocation.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/ir-kbd-i2c.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c index 11c5fdedc23b..7b65f5e537f8 100644 --- a/drivers/media/video/ir-kbd-i2c.c +++ b/drivers/media/video/ir-kbd-i2c.c @@ -509,8 +509,11 @@ static int ir_probe(struct i2c_adapter *adap) static const int probe_cx88[] = { 0x18, 0x6b, 0x71, -1 }; static const int probe_cx23885[] = { 0x6b, -1 }; const int *probe; - struct i2c_client *c; - unsigned char buf; + struct i2c_msg msg = { + .flags = I2C_M_RD, + .len = 0, + .buf = NULL, + }; int i, rc; switch (adap->id) { @@ -536,23 +539,17 @@ static int ir_probe(struct i2c_adapter *adap) return 0; } - c = kzalloc(sizeof(*c), GFP_KERNEL); - if (!c) - return -ENOMEM; - - c->adapter = adap; for (i = 0; -1 != probe[i]; i++) { - c->addr = probe[i]; - rc = i2c_master_recv(c, &buf, 0); + msg.addr = probe[i]; + rc = i2c_transfer(adap, &msg, 1); dprintk(1,"probe 0x%02x @ %s: %s\n", probe[i], adap->name, - (0 == rc) ? "yes" : "no"); - if (0 == rc) { + (1 == rc) ? "yes" : "no"); + if (1 == rc) { ir_attach(adap, probe[i], 0, 0); break; } } - kfree(c); return 0; } |