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| author | Tomoki Sekiyama <tomoki.sekiyama@gmail.com> | 2018-03-03 13:20:56 -0500 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-03-06 12:46:15 -0500 |
| commit | 564246fd3ff41afd3234c18ae28bc4ad9d815f79 (patch) | |
| tree | 7fc6c410d790ccec8d1e0d29462d27c2ff714207 /drivers/staging/media | |
| parent | e97c19074f282f20625d4522da184647a5c9b52c (diff) | |
| download | op-kernel-dev-564246fd3ff41afd3234c18ae28bc4ad9d815f79.zip op-kernel-dev-564246fd3ff41afd3234c18ae28bc4ad9d815f79.tar.gz | |
media: siano: Fix coherent memory allocation failure on arm64
On some architectures such as arm64, siano chip based TV-tuner
USB devices are not recognized correctly due to coherent memory
allocation failure with the following error:
[ 663.556135] usbcore: deregistering interface driver smsusb
[ 683.624809] smsusb:smsusb_probe: board id=18, interface number 0
[ 683.633530] smsusb:smsusb_init_device: smscore_register_device(...) failed, rc -12
[ 683.641501] smsusb:smsusb_probe: Device initialized with return code -12
[ 683.652978] smsusb: probe of 1-1:1.0 failed with error -12
This is caused by dma_alloc_coherent(NULL, ...) returning NULL in
smscoreapi.c.
To fix this error, allocate the buffer memory for the USB devices
via kmalloc() and let the USB core do the DMA mapping and free.
Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/staging/media')
0 files changed, 0 insertions, 0 deletions
