On 12/20/19 4:49 PM, Colin Ian King wrote: > On 20/12/2019 23:48, Jens Axboe wrote: >> On 12/20/19 4:33 PM, Colin King wrote: >>> From: Colin Ian King <colin.king@xxxxxxxxxxxxx> >>> >>> Currently when the call to percpu_ref_init fails ctx->file_data is >>> set to null and because there is a missing return statement the >>> following statement dereferences this null pointer causing an oops. >>> Fix this by adding the missing -ENOMEM return to avoid the oops. >> >> Nice, thanks! I'm guessing I didn't have the necessary magic debug >> options to allow failure injection for failing. > > Fortunately we have Coverity to the rescue :-) Indeed! -- Jens Axboe