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| author | Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> | 2025-08-10 15:33:28 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2025-08-16 14:52:43 +0100 |
| commit | c69e13965f26b8058f538ea8bdbd2d7718cf1fbe (patch) | |
| tree | b94f3adff2ef8373285caf5b0955a60a3cc97f2c /tools/perf/util/scripting-engines | |
| parent | a3c6eabe3bbd6b0e7124d68b2d3bc32fed17362e (diff) | |
iio: adc: rzg2l_adc: Set driver data before enabling runtime PM
When stress-testing the system by repeatedly unbinding and binding the ADC
device in a loop, and the ADC is a supplier for another device (e.g., a
thermal hardware block that reads temperature through the ADC), it may
happen that the ADC device is runtime-resumed immediately after runtime PM
is enabled, triggered by its consumer. At this point, since drvdata is not
yet set and the driver's runtime PM callbacks rely on it, a crash can
occur. To avoid this, set drvdata just after it was allocated.
Fixes: 89ee8174e8c8 ("iio: adc: rzg2l_adc: Simplify the runtime PM code")
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://patch.msgid.link/20250810123328.800104-3-claudiu.beznea.uj@bp.renesas.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'tools/perf/util/scripting-engines')
0 files changed, 0 insertions, 0 deletions