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author | Himangi Saraogi <himangi774@gmail.com> | 2014-05-28 22:58:49 +0530 |
---|---|---|
committer | Sebastian Reichel <sre@kernel.org> | 2014-07-18 23:40:22 +0200 |
commit | 1cb82fdb2a0fb2af9da69eeee92877189ec9a560 (patch) | |
tree | b0441df1a37b41c1e5d09ce5e930c041d4f0a2f0 /drivers/power/bq27x00_battery.c | |
parent | c93e12c0ff42de33514d574ff1292f5347e2a8b5 (diff) | |
download | linux-stable-1cb82fdb2a0fb2af9da69eeee92877189ec9a560.tar.gz linux-stable-1cb82fdb2a0fb2af9da69eeee92877189ec9a560.tar.bz2 linux-stable-1cb82fdb2a0fb2af9da69eeee92877189ec9a560.zip |
bq27x00_battery: Introduce the use of the managed version of kzalloc
This patch moves data allocated using kzalloc to managed data allocated
using devm_kzalloc and cleans now unnecessary kfrees in probe and remove
functions for both platform and i2c drivers. Also, the unecessary
variable ret and labels batt_failed3, err_free were removed.
The following Coccinele script was used for making the change:
@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
.probe = probefn,
.remove = removefn,
};
@prb@
identifier platform.probefn, pdev;
expression e, e1, e2;
@@
probefn(struct platform_device *pdev, ...) {
<+...
- e = kzalloc(e1, e2)
+ e = devm_kzalloc(&pdev->dev, e1, e2)
...
?-kfree(e);
...+>
}
@rem depends on prb@
identifier platform.removefn;
expression e;
@@
removefn(...) {
<...
- kfree(e);
...>
}
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'drivers/power/bq27x00_battery.c')
-rw-r--r-- | drivers/power/bq27x00_battery.c | 25 |
1 files changed, 5 insertions, 20 deletions
diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index b309713b63bc..a0f205b0471d 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -25,6 +25,7 @@ * http://www.ti.com/product/bq27425-g1 */ +#include <linux/device.h> #include <linux/module.h> #include <linux/param.h> #include <linux/jiffies.h> @@ -804,7 +805,7 @@ static int bq27x00_battery_probe(struct i2c_client *client, goto batt_failed_1; } - di = kzalloc(sizeof(*di), GFP_KERNEL); + di = devm_kzalloc(&client->dev, sizeof(*di), GFP_KERNEL); if (!di) { dev_err(&client->dev, "failed to allocate device info data\n"); retval = -ENOMEM; @@ -819,14 +820,12 @@ static int bq27x00_battery_probe(struct i2c_client *client, retval = bq27x00_powersupply_init(di); if (retval) - goto batt_failed_3; + goto batt_failed_2; i2c_set_clientdata(client, di); return 0; -batt_failed_3: - kfree(di); batt_failed_2: kfree(name); batt_failed_1: @@ -849,8 +848,6 @@ static int bq27x00_battery_remove(struct i2c_client *client) idr_remove(&battery_id, di->id); mutex_unlock(&battery_mutex); - kfree(di); - return 0; } @@ -933,7 +930,6 @@ static int bq27000_battery_probe(struct platform_device *pdev) { struct bq27x00_device_info *di; struct bq27000_platform_data *pdata = pdev->dev.platform_data; - int ret; if (!pdata) { dev_err(&pdev->dev, "no platform_data supplied\n"); @@ -945,7 +941,7 @@ static int bq27000_battery_probe(struct platform_device *pdev) return -EINVAL; } - di = kzalloc(sizeof(*di), GFP_KERNEL); + di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL); if (!di) { dev_err(&pdev->dev, "failed to allocate device info data\n"); return -ENOMEM; @@ -959,16 +955,7 @@ static int bq27000_battery_probe(struct platform_device *pdev) di->bat.name = pdata->name ?: dev_name(&pdev->dev); di->bus.read = &bq27000_read_platform; - ret = bq27x00_powersupply_init(di); - if (ret) - goto err_free; - - return 0; - -err_free: - kfree(di); - - return ret; + return bq27x00_powersupply_init(di); } static int bq27000_battery_remove(struct platform_device *pdev) @@ -977,8 +964,6 @@ static int bq27000_battery_remove(struct platform_device *pdev) bq27x00_powersupply_unregister(di); - kfree(di); - return 0; } |