diff options
| author | Krzysztof Kozlowski <[email protected]> | 2019-02-09 00:39:27 +0100 |
|---|---|---|
| committer | Jonathan Cameron <[email protected]> | 2019-02-09 18:46:03 +0000 |
| commit | 2ea8bab4dd2a9014e723b28091831fa850b82d83 (patch) | |
| tree | e426148edfd78297354e0572aca7fea2b9c50289 /tools/perf/scripts/python | |
| parent | 905889b4a34c753a538015f0b2cdaa0c9e3a4fd5 (diff) | |
iio: adc: exynos-adc: Fix NULL pointer exception on unbind
Fix NULL pointer exception on device unbind when device tree does not
contain "has-touchscreen" property. In such case the input device is
not registered so it should not be unregistered.
$ echo "12d10000.adc" > /sys/bus/platform/drivers/exynos-adc/unbind
Unable to handle kernel NULL pointer dereference at virtual address 00000474
...
(input_unregister_device) from [<c0772060>] (exynos_adc_remove+0x20/0x80)
(exynos_adc_remove) from [<c0587d5c>] (platform_drv_remove+0x20/0x40)
(platform_drv_remove) from [<c05860f0>] (device_release_driver_internal+0xdc/0x1ac)
(device_release_driver_internal) from [<c0583ecc>] (unbind_store+0x60/0xd4)
(unbind_store) from [<c031b89c>] (kernfs_fop_write+0x100/0x1e0)
(kernfs_fop_write) from [<c029709c>] (__vfs_write+0x2c/0x17c)
(__vfs_write) from [<c0297374>] (vfs_write+0xa4/0x184)
(vfs_write) from [<c0297594>] (ksys_write+0x4c/0xac)
(ksys_write) from [<c0101000>] (ret_fast_syscall+0x0/0x28)
Fixes: 2bb8ad9b44c5 ("iio: exynos-adc: add experimental touchscreen support")
Cc: <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions