diff options
| author | Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> | 2008-04-28 05:14:45 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-28 11:58:34 -0400 |
| commit | d72cbed0c486e3db8b56380635f8e845073ce63a (patch) | |
| tree | 8739c1078f970a2acdb24fd3f2b94c68c89dd3b5 /drivers/gpio/pca953x.c | |
| parent | 438d8908b379b6322fc3b28d45c9ebdddf58bc20 (diff) | |
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: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de>
[ add mcp23s08 and pcf857x ]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/gpio/pca953x.c')
| -rw-r--r-- | drivers/gpio/pca953x.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c index 6e72fd31184d..e0e0af536108 100644 --- a/drivers/gpio/pca953x.c +++ b/drivers/gpio/pca953x.c | |||
| @@ -189,6 +189,7 @@ static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios) | |||
| 189 | gc->base = chip->gpio_start; | 189 | gc->base = chip->gpio_start; |
| 190 | gc->ngpio = gpios; | 190 | gc->ngpio = gpios; |
| 191 | gc->label = chip->client->name; | 191 | gc->label = chip->client->name; |
| 192 | gc->owner = THIS_MODULE; | ||
| 192 | } | 193 | } |
| 193 | 194 | ||
| 194 | static int __devinit pca953x_probe(struct i2c_client *client) | 195 | static int __devinit pca953x_probe(struct i2c_client *client) |