* [bug report] regulator: axp20x: add support for set_ramp_delay for AXP209
@ 2018-12-15 9:41 Dan Carpenter
0 siblings, 0 replies; only message in thread
From: Dan Carpenter @ 2018-12-15 9:41 UTC (permalink / raw)
To: kernel-janitors
Hello Olliver Schinagl,
This is a semi-automatic email about new static checker warnings.
The patch d29f54df8b16: "regulator: axp20x: add support for
set_ramp_delay for AXP209" from Dec 11, 2018, leads to the following
Smatch complaint:
drivers/regulator/axp20x-regulator.c:375 axp20x_set_ramp_delay()
warn: variable dereferenced before check 'rdev' (see line 369)
drivers/regulator/axp20x-regulator.c
368 {
369 struct axp20x_dev *axp20x = rdev_get_drvdata(rdev);
^^^^
370 const struct regulator_desc *desc = rdev->desc;
^^^^^^^^^^
Dereferences
371 u8 reg, mask, enable, cfg = 0xff;
372 const int *slew_rates;
373 int rate_count = 0;
374
375 if (!rdev)
^^^^^
Check too late.
376 return -EINVAL;
377
regards,
dan carpenter
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