lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

gpiolib: i2c/spi drivers: handle rmmod better

Browse Source 
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>
This commit is contained in:
Guennadi Liakhovetski
2008-04-28 02:14:45 -07:00
committed by Linus Torvalds
parent 438d8908b3
commit d72cbed0c4
3 changed files with 3 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpio/mcp23s08.c
View File

@ -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);