From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jia-Ju Bai Subject: [BUG] tulip/de4x5: a possible sleep-in-atomic bug in de4x5_interrupt Date: Wed, 13 Dec 2017 18:13:53 +0800 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Cc: netdev@vger.kernel.org, linux-parisc@vger.kernel.org, Linux Kernel Mailing List To: davem@davemloft.net, Stephen Hemminger , keescook@chromium.org, dhowells@redhat.com, allen.lkml@gmail.com, johannes.berg@intel.com, arvind.yadav.cs@gmail.com Return-path: List-ID: List-Id: linux-parisc.vger.kernel.org According to drivers/net/ethernet/dec/tulip/de4x5.c, the driver may sleep in the interrupt handler. The function call path is: de4x5_interrupt (interrupt handler) synchronize_irq --> may sleep I do not find a good way to fix it, so I only report. This possible bug is found by my static analysis tool (DSAC) and checked by my code review. Thanks, Jia-Ju Bai