korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-11 21:38:32 +08:00
Code Issues Packages Projects Releases Wiki Activity

Input: snvs_pwrkey - initialize necessary driver data before enabling IRQ

Browse Source 
SNVS IRQ is requested before necessary driver data initialized,
if there is a pending IRQ during driver probe phase, kernel
NULL pointer panic will occur in IRQ handler. To avoid such
scenario, just initialize necessary driver data before enabling
IRQ. This patch is inspired by NXP's internal kernel tree.

Fixes: d3dc6e2322 ("input: keyboard: imx: add snvs power key driver")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Anson Huang 2019-04-03 15:14:44 -07:00 committed by Dmitry Torokhov
parent c01908a14b
commit bf2a7ca39f
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/input/keyboard/snvs_pwrkey.c
View File

@ -148,6 +148,9 @@ static int imx_snvs_pwrkey_probe(struct platform_device *pdev)
return error;
}
pdata->input = input;
platform_set_drvdata(pdev, pdata);
error = devm_request_irq(&pdev->dev, pdata->irq,
imx_snvs_pwrkey_interrupt,
0, pdev->name, pdev);
@ -163,9 +166,6 @@ static int imx_snvs_pwrkey_probe(struct platform_device *pdev)
return error;
}
pdata->input = input;
platform_set_drvdata(pdev, pdata);
device_init_wakeup(&pdev->dev, pdata->wakeup);
return 0;