diff options
| author | Gustavo A. R. Silva <garsilva@embeddedor.com> | 2017-07-07 00:49:18 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-07-07 15:48:33 +0300 |
| commit | da2629684822091bf15c6c14d8e33b75dfce8637 (patch) | |
| tree | 0304b11bc79c62dde3ad513be278ce7aaabd27ca /drivers/regulator | |
| parent | 8d67f64f7739464c352d4b167ed1748f3b2c1f44 (diff) | |
| download | linux-da2629684822091bf15c6c14d8e33b75dfce8637.tar.xz | |
regulator: axp20x: add NULL check on devm_kzalloc() return value
Check return value from call to devm_kzalloc()
in order to prevent a NULL pointer dereference.
This issue was detected using Coccinelle and the following semantic patch:
@@
expression x;
identifier fld;
@@
* x = devm_kzalloc(...);
... when != x == NULL
x->fld
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/axp20x-regulator.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c index e2608fe770b9..f18b36dd57dd 100644 --- a/drivers/regulator/axp20x-regulator.c +++ b/drivers/regulator/axp20x-regulator.c @@ -691,6 +691,9 @@ static int axp20x_regulator_probe(struct platform_device *pdev) (regulators == axp809_regulators && i == AXP809_DC1SW)) { new_desc = devm_kzalloc(&pdev->dev, sizeof(*desc), GFP_KERNEL); + if (!new_desc) + return -ENOMEM; + *new_desc = regulators[i]; new_desc->supply_name = dcdc1_name; desc = new_desc; @@ -700,6 +703,9 @@ static int axp20x_regulator_probe(struct platform_device *pdev) (regulators == axp809_regulators && i == AXP809_DC5LDO)) { new_desc = devm_kzalloc(&pdev->dev, sizeof(*desc), GFP_KERNEL); + if (!new_desc) + return -ENOMEM; + *new_desc = regulators[i]; new_desc->supply_name = dcdc5_name; desc = new_desc; |