Hi Mark, > On Thu, Oct 24, 2019 at 04:13:09PM +0200, Gregory CLEMENT wrote: >> Even if the flag use_gpio_descriptors is set, it is possible that >> cs_gpiods was not allocated, which leads to a kernel crash: >> >> Unable to handle kernel NULL pointer dereference at virtual address 00000000 >> pgd = (ptrval) >> [00000000] *pgd=00000000 >> Internal error: Oops: 5 [#1] ARM >> Modules linked in: >> CPU: 0 PID: 1 Comm: swapper Tainted: G W 5.4.0-rc3 #1 >> Hardware name: NVIDIA Tegra SoC (Flattened Device Tree) >> PC is at of_register_spi_device+0x20c/0x38c >> LR is at __of_find_property+0x3c/0x60 >> pc : [<c09b45dc>] lr : [<c0c47a98>] psr: 20000013 > > Please think hard before including complete backtraces in upstream > reports, they are very large and contain almost no useful information > relative to their size so often obscure the relevant content in your > message. If part of the backtrace is usefully illustrative then it's > usually better to pull out the relevant sections. You can remove it while applying it, or I can send a v2. Actually I thought you would squash it with the initial patch to avoid the bisectability break. Gregory -- Gregory Clement, Bootlin Embedded Linux and Kernel engineering http://bootlin.com
