Searched hist:b39c0615 (Results 1 – 1 of 1) sorted by relevance
| /openbmc/linux/drivers/pwm/ |
| H A D | pwm-img.c | b39c0615 Thu Aug 20 12:14:25 CDT 2020 Hauke Mehrtens <hauke@hauke-m.de> pwm: img: Fix null pointer access in probe
dev_get_drvdata() is called in img_pwm_runtime_resume() before the
driver data is set.
When pm_runtime_enabled() returns false in img_pwm_probe() it calls
img_pwm_runtime_resume() which results in a null pointer access.
This patch fixes the problem by setting the driver data earlier in the
img_pwm_probe() function.
This crash was seen when booting the Imagination Technologies Creator
Ci40 (Marduk) with kernel 5.4 in OpenWrt.
Fixes: e690ae526216 ("pwm: img: Add runtime PM")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
b39c0615 Thu Aug 20 12:14:25 CDT 2020 Hauke Mehrtens <hauke@hauke-m.de> pwm: img: Fix null pointer access in probe
dev_get_drvdata() is called in img_pwm_runtime_resume() before the
driver data is set.
When pm_runtime_enabled() returns false in img_pwm_probe() it calls
img_pwm_runtime_resume() which results in a null pointer access.
This patch fixes the problem by setting the driver data earlier in the
img_pwm_probe() function.
This crash was seen when booting the Imagination Technologies Creator
Ci40 (Marduk) with kernel 5.4 in OpenWrt.
Fixes: e690ae526216 ("pwm: img: Add runtime PM")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
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