Среда, 19 февраля 2014, 8:45 +01:00 от Geert Uytterhoeven <[email protected]>: > On Wed, Feb 19, 2014 at 8:32 AM, Alexander Shiyan <[email protected]> wrote: > > During testing functions transfer_one(), stumbled upon an error. > > I'm using kernel 3.13, so I had to apply a patch from upstream > > (spi: core: Fix transfer failure when master->transfer_one returns positive > > value). > > After applying all becomes normal with probing, but where did the error > > "Unable to handle kernel NULL pointer dereference" ? > > Did someone have similar bugs? > > > > Thanks. > > > > spi_master spi0: failed to transfer one message from queue: 1 > > 74x164 spi0.1: Failed writing: 1 > > 74x164: probe of spi0.1 failed with error 1 > > Unable to handle kernel NULL pointer dereference at virtual address 00000020 > > CAN device driver interface > > pgd = c0024000 > > [00000020] *pgd=00000000 > > Internal error: Oops: 63c11805 [#1] PREEMPT ARM > > CPU: 0 PID: 22 Comm: spi0 Not tainted 3.13.3 #1 > > task: c396b260 ti: c396e000 task.ti: c396e000 > > PC is at spi_pump_messages+0x150/0x194 > > Have you applied other patches from upstream? > > E.g. e120cc0dcf2880a4c5c0a6cb27b655600a1cfa1d introduced a NULL > pointer dereference, with got fixed by > 1f802f8249a0da536877842c43c7204064c4de8b.
It helped me. Thanks. Mark, Is any chances to put these two patches to 3.13-stable? (spi: core: Fix transfer failure when master->transfer_one returns positive value), (spi: Fix crash with double message finalisation on error handling) ---
