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| author | Alexander Aring <alex.aring@gmail.com> | 2015-10-26 19:10:29 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-10-27 16:45:51 +0100 |
| commit | 51b0e90ec6f978bcc5ebe970acd0c62cbb341575 (patch) | |
| tree | e426c33eed57969f16f6ae26790e82361ae0abc6 /drivers/amba | |
| parent | 1678dcf7ca52b8028e6dd311fba1402eb49d3565 (diff) | |
| download | barebox-51b0e90ec6f978bcc5ebe970acd0c62cbb341575.tar.gz barebox-51b0e90ec6f978bcc5ebe970acd0c62cbb341575.tar.xz | |
amba: check if on remove callback
Currently we get a null pointer dereference when booting linux on RPi
which use "uart-pl011" driver. This driver doesn't implement a remove
driver callback. This patch adds a check before calling the remove
callback if the driver which use the amba bus implement such
functionality.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/amba')
| -rw-r--r-- | drivers/amba/bus.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c index b934e1182d..ddd9661806 100644 --- a/drivers/amba/bus.c +++ b/drivers/amba/bus.c @@ -70,7 +70,8 @@ static void amba_remove(struct device_d *dev) struct amba_device *pcdev = to_amba_device(dev); struct amba_driver *drv = to_amba_driver(dev->driver); - drv->remove(pcdev); + if (drv->remove) + drv->remove(pcdev); } struct bus_type amba_bustype = { |