diff options
| author | Stephen Street <[email protected]> | 2006-02-21 02:27:56 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2006-02-21 04:00:09 +0000 |
| commit | d2799f083dcad0413ad1a396e9bc32d9afb70535 (patch) | |
| tree | e3ff753888f2e03437b9ab951269d213fe522e20 /drivers/spi/spi.c | |
| parent | [PATCH] cfi_cmdset_0001: fix range for cache invalidation (diff) | |
| download | kernel-d2799f083dcad0413ad1a396e9bc32d9afb70535.tar.gz kernel-d2799f083dcad0413ad1a396e9bc32d9afb70535.zip | |
[PATCH] spi: Fix modular master driver remove and device suspend/remove
Fix two problems in the spi subsystem:
1) spi subsystem core dumps when modular spi master is unloaded.
2) spi subsystem core dumps when spi slave device is suspended/resumed and
module slave driver is not loaded.
Signed-off-by: Stephen Street <[email protected]>
Signed-off-by: David Brownell <[email protected]>
Cc: Greg KH <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'drivers/spi/spi.c')
| -rw-r--r-- | drivers/spi/spi.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 791c4dc550ae..94f5e8ed83a7 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -90,7 +90,7 @@ static int spi_suspend(struct device *dev, pm_message_t message) int value; struct spi_driver *drv = to_spi_driver(dev->driver); - if (!drv->suspend) + if (!drv || !drv->suspend) return 0; /* suspend will stop irqs and dma; no more i/o */ @@ -105,7 +105,7 @@ static int spi_resume(struct device *dev) int value; struct spi_driver *drv = to_spi_driver(dev->driver); - if (!drv->resume) + if (!drv || !drv->resume) return 0; /* resume may restart the i/o queue */ @@ -449,7 +449,6 @@ void spi_unregister_master(struct spi_master *master) { (void) device_for_each_child(master->cdev.dev, NULL, __unregister); class_device_unregister(&master->cdev); - master->cdev.dev = NULL; } EXPORT_SYMBOL_GPL(spi_unregister_master); |