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gpio: omap: prevent module from being unloaded while in use 

OMAP GPIO driver allowed to be built as loadable module, but it
doesn't set owner field in GPIO chip structure. As result,
module_get/put() API is not working and it's possible to unload
OMAP driver while in use:

  omap_gpio 48051000.gpio: REMOVING GPIOCHIP WITH GPIOS STILL REQUESTED

Hence, add missing configuration.

Cc: Tony Lindgren <tony@atomide.com>
Fixes: cac089f902 ('gpio: omap: Allow building as a loadable module')
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Grygorii Strashko 2015-06-25 18:13:33 +03:00 committed by Linus Walleij
parent 34ab54edbe
commit c23837ce73
1 changed files with 1 additions and 0 deletions
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1
drivers/gpio/gpio-omap.c
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@ -1187,6 +1187,7 @@ static int omap_gpio_probe(struct platform_device *pdev)
bank->irq = res->start;
bank->dev = dev;
bank->chip.dev = dev;
bank->chip.owner = THIS_MODULE;
bank->dbck_flag = pdata->dbck_flag;
bank->stride = pdata->bank_stride;
bank->width = pdata->bank_width;