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| author |   Xiaoke Wang <xkernel.wang@foxmail.com> | 2022-01-17 15:06:06 +0800 |
|---|---|---|
| committer |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-01-24 17:23:15 +0200 |
| commit | c84eab5850d11bea546491bb1798039448971141 (patch) | |
| tree | 3ca0044aef6715d2e7d899e4c8d7804b96108fff /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | gpio: crystalcove: Set IRQ domain bus token to DOMAIN_BUS_WIRED (diff) | |
| download | wireguard-linux-c84eab5850d11bea546491bb1798039448971141.tar.xz wireguard-linux-c84eab5850d11bea546491bb1798039448971141.zip | |
gpio: merrifield: check the return value of devm_kstrdup()
devm_kstrdup() returns pointer to allocated string on success, NULL on
failure. So it is better to check the return value of it.
Before, if devm_kstrdup() fails, pinctrl_dev_name will be NULL, then the
retval below will be a negative error-code (inside gpiochip_add_pin_range(),
pinctrl_find_and_add_gpio_range()->get_pinctrl_dev_from_devname() will
finally check pinctrl_dev_name and return an error), so the failure of
devm_kstrdup() can be only implicitly caught after a long call chain.
While this patch is to explicitly catch the failure in time.
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions