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Commit d72cbed0 authored by Guennadi Liakhovetski's avatar Guennadi Liakhovetski Committed by Linus Torvalds
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gpiolib: i2c/spi drivers: handle rmmod better 



Use the newly introduced owner field in struct gpio_chip to protect the
current (small) set of non-SOC GPIO drivers from being unloaded while any of
their GPIOs are in use.

Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@pengutronix.de>
[ add mcp23s08 and pcf857x ]
Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 438d8908

drivers/gpio/mcp23s08.c

+1 −0
Original line number Diff line number Diff line
@@ -239,6 +239,7 @@ static int mcp23s08_probe(struct spi_device *spi) 
	mcp->chip.base = pdata->base;

	mcp->chip.ngpio = 8;

	mcp->chip.can_sleep = 1;

	mcp->chip.owner = THIS_MODULE;



	spi_set_drvdata(spi, mcp);

drivers/gpio/pca953x.c

+1 −0
Original line number Diff line number Diff line
@@ -189,6 +189,7 @@ static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios) 
	gc->base = chip->gpio_start;

	gc->ngpio = gpios;

	gc->label = chip->client->name;

	gc->owner = THIS_MODULE;

}



static int __devinit pca953x_probe(struct i2c_client *client)

drivers/gpio/pcf857x.c

+1 −0
Original line number Diff line number Diff line
@@ -159,6 +159,7 @@ static int pcf857x_probe(struct i2c_client *client) 


	gpio->chip.base = pdata->gpio_base;

	gpio->chip.can_sleep = 1;

	gpio->chip.owner = THIS_MODULE;



	/* NOTE:  the OnSemi jlc1562b is also largely compatible with

	 * these parts, notably for output.  It has a low-resolution