diff options
| author |   Hans-Peter Nilsson <hans-peter.nilsson@axis.com> | 2007-02-12 00:52:45 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-12 09:48:31 -0800 |
| commit | 0ffa0285052607513a29f529ddb5061c907fd8a6 (patch) | |
| tree | d7072494d6d8005c60d42c1c841628c7d486dd9a /drivers | |
| parent | [PATCH] spi_bitbang(): use overridable setup_transfer() method (diff) | |
| download | linux-dev-0ffa0285052607513a29f529ddb5061c907fd8a6.tar.xz linux-dev-0ffa0285052607513a29f529ddb5061c907fd8a6.zip | |
[PATCH] SPI cleanup() method param becomes non-const
I'd like to assign NULL to kfree()d members of a structure. I can't do
that without ugly casting (see the PXA patch) when the structure pointed to
is const-qualified. I don't really see a reason why the cleanup method
isn't allowed to alter the object it should clean up. :-)
No, I didn't test the PXA patch, but I verified that the NULL-assignment
doesn't stop me from doing rmmod/insmodding my own spi_bitbang-based
driver.
Signed-off-by: Hans-Peter Nilsson <hp@axis.com>
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')
| -rw-r--r-- | drivers/spi/pxa2xx_spi.c | 4 | ||||
| -rw-r--r-- | drivers/spi/spi.c | 2 | ||||
| -rw-r--r-- | drivers/spi/spi_bitbang.c | 2 |
3 files changed, 4 insertions, 4 deletions
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c index 8b41f9cc2560..9f2c887ffa04 100644 --- a/drivers/spi/pxa2xx_spi.c +++ b/drivers/spi/pxa2xx_spi.c @@ -1214,9 +1214,9 @@ static int setup(struct spi_device *spi) return 0; } -static void cleanup(const struct spi_device *spi) +static void cleanup(struct spi_device *spi) { - struct chip_data *chip = spi_get_ctldata((struct spi_device *)spi); + struct chip_data *chip = spi_get_ctldata(spi); kfree(chip); } diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 6307428d2c94..2328128728be 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -32,7 +32,7 @@ */ static void spidev_release(struct device *dev) { - const struct spi_device *spi = to_spi_device(dev); + struct spi_device *spi = to_spi_device(dev); /* spi masters may cleanup for released devices */ if (spi->master->cleanup) diff --git a/drivers/spi/spi_bitbang.c b/drivers/spi/spi_bitbang.c index a5dadc74cee6..24a330d82395 100644 --- a/drivers/spi/spi_bitbang.c +++ b/drivers/spi/spi_bitbang.c @@ -238,7 +238,7 @@ EXPORT_SYMBOL_GPL(spi_bitbang_setup); /** * spi_bitbang_cleanup - default cleanup for per-word I/O loops */ -void spi_bitbang_cleanup(const struct spi_device *spi) +void spi_bitbang_cleanup(struct spi_device *spi) { kfree(spi->controller_state); } |