iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

regulator: axp20x: add NULL check on devm_kzalloc() return value

Browse Source 
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>
This commit is contained in:
Gustavo A. R. Silva 2017-07-06 16:49:18 -05:00 committed by Mark Brown
parent 8d67f64f77
commit da26296848
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/regulator/axp20x-regulator.c
View File

@ -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;