diff options
Diffstat (limited to 'target/linux/pistachio/patches-5.4/150-pwm-img-Fix-null-pointer-access-in-probe.patch')
| -rw-r--r-- | target/linux/pistachio/patches-5.4/150-pwm-img-Fix-null-pointer-access-in-probe.patch | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/target/linux/pistachio/patches-5.4/150-pwm-img-Fix-null-pointer-access-in-probe.patch b/target/linux/pistachio/patches-5.4/150-pwm-img-Fix-null-pointer-access-in-probe.patch deleted file mode 100644 index d5c573c75c..0000000000 --- a/target/linux/pistachio/patches-5.4/150-pwm-img-Fix-null-pointer-access-in-probe.patch +++ /dev/null @@ -1,42 +0,0 @@ -From 502396fe598126ffd91f962d53a507aa6c7276fc Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens <hauke@hauke-m.de> -Date: Sat, 15 Aug 2020 16:37:43 +0200 -Subject: [PATCH v2] 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> ---- - drivers/pwm/pwm-img.c | 3 ++- - 1 file changed, 2 insertions(+), 1 deletion(-) - ---- a/drivers/pwm/pwm-img.c -+++ b/drivers/pwm/pwm-img.c -@@ -277,6 +277,8 @@ static int img_pwm_probe(struct platform - return PTR_ERR(pwm->pwm_clk); - } - -+ platform_set_drvdata(pdev, pwm); -+ - pm_runtime_set_autosuspend_delay(&pdev->dev, IMG_PWM_PM_TIMEOUT); - pm_runtime_use_autosuspend(&pdev->dev); - pm_runtime_enable(&pdev->dev); -@@ -313,7 +315,6 @@ static int img_pwm_probe(struct platform - goto err_suspend; - } - -- platform_set_drvdata(pdev, pwm); - return 0; - - err_suspend: |