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authorJean Delvare <khali@linux-fr.org>2008-06-18 14:46:27 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2008-07-21 15:16:38 -0700
commit64b3d6d11948cc71ff12124dcb693392a32f1bf4 (patch)
treed13757608f2bc1ad90ce7bfa99784546c499225e /drivers/usb/host/ohci-pnx4008.c
parent71be4f81e97fe1f42c48a6dfc411dc6d3c18687f (diff)
downloadop-kernel-dev-64b3d6d11948cc71ff12124dcb693392a32f1bf4.zip
op-kernel-dev-64b3d6d11948cc71ff12124dcb693392a32f1bf4.tar.gz
USB: ohci-pnx4008: I2C cleanups and fixes
Various cleanups and fixes to the i2c code in ohci-pnx4008: * Delete empty isp1301_command. The i2c driver command implementation is optional, so there's no point in providing an empty implementation. * Give a name to isp1301_driver. I'm surprised that i2c-core accepted to register this driver at all. I've chosen "isp1301_pnx" as the name, because it's not a generic ISP1301 driver (much like the isp1301_omap driver.) We might want to make the name even more specific (but "isp1301_ohci_pnx4008" doesn't fit.) * The ISP1301 is definitely not a hardware monitoring device. * Fix a memory leak on failure in isp1301_attach. If i2c_attach_client fails, the client is not registered so isp1301_detach is never called and the i2c_client memory is lost. * Use strlcpy instead of strcpy. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Vitaly Wool <vitalywool@gmail.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/ohci-pnx4008.c')
-rw-r--r--drivers/usb/host/ohci-pnx4008.c26
1 files changed, 12 insertions, 14 deletions
diff --git a/drivers/usb/host/ohci-pnx4008.c b/drivers/usb/host/ohci-pnx4008.c
index 7062ab5..6ad8f2f 100644
--- a/drivers/usb/host/ohci-pnx4008.c
+++ b/drivers/usb/host/ohci-pnx4008.c
@@ -109,8 +109,6 @@ static struct clk *usb_clk;
static int isp1301_probe(struct i2c_adapter *adap);
static int isp1301_detach(struct i2c_client *client);
-static int isp1301_command(struct i2c_client *client, unsigned int cmd,
- void *arg);
static const unsigned short normal_i2c[] =
{ ISP1301_I2C_ADDR, ISP1301_I2C_ADDR + 1, I2C_CLIENT_END };
@@ -123,30 +121,37 @@ static struct i2c_client_address_data addr_data = {
};
struct i2c_driver isp1301_driver = {
- .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "isp1301_pnx",
+ },
.attach_adapter = isp1301_probe,
.detach_client = isp1301_detach,
- .command = isp1301_command
};
static int isp1301_attach(struct i2c_adapter *adap, int addr, int kind)
{
struct i2c_client *c;
+ int err;
c = kzalloc(sizeof(*c), GFP_KERNEL);
-
if (!c)
return -ENOMEM;
- strcpy(c->name, "isp1301");
+ strlcpy(c->name, "isp1301_pnx", I2C_NAME_SIZE);
c->flags = 0;
c->addr = addr;
c->adapter = adap;
c->driver = &isp1301_driver;
+ err = i2c_attach_client(c);
+ if (err) {
+ kfree(c);
+ return err;
+ }
+
isp1301_i2c_client = c;
- return i2c_attach_client(c);
+ return 0;
}
static int isp1301_probe(struct i2c_adapter *adap)
@@ -161,13 +166,6 @@ static int isp1301_detach(struct i2c_client *client)
return 0;
}
-/* No commands defined */
-static int isp1301_command(struct i2c_client *client, unsigned int cmd,
- void *arg)
-{
- return 0;
-}
-
static void i2c_write(u8 buf, u8 subaddr)
{
char tmpbuf[2];
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