Re: Null pointer dereference in mcp251x driver when resuming from sleep
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: 2021-05-03 13:44:45
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On Mon, May 03, 2021 at 03:11:40PM +0200, Frieder Schrempf wrote:
Hi, with kernel 5.10.x and 5.12.x I'm getting a null pointer dereference exception from the mcp251x driver when I resume from sleep (see trace below). As far as I can tell this was working fine with 5.4. As I currently don't have the time to do further debugging/bisecting, for now I want to at least report this here. Maybe there is someone around who could already give a wild guess for what might cause this just by looking at the trace/code!?
Does revert of c7299fea6769 ("spi: Fix spi device unregister flow") help?
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With Best Regards,
Andy Shevchenko