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Date: Tue, 18 Aug 2020 08:43:23 -0400 From: Brooke Basile <brookebasile@...il.com> To: Nathan Chancellor <natechancellor@...il.com> Cc: danil.kipnis@...ud.ionos.com, jinpu.wang@...ud.ionos.com, axboe@...nel.dk, linux-block@...r.kernel.org, linux-kernel@...r.kernel.org, clang-built-linux@...glegroups.com Subject: Re: [PATCH] block: rnbd: rnbd-srv: silence uninitialized variable warning On 8/18/20 1:29 AM, Nathan Chancellor wrote: > I don't think this is a proper fix since the root cause of the warning > appears to be that we are ignoring the return value of > rnbd_bio_map_kern. Should we not set err to that value like this > (completely untested)? > > Cheers, > Nathan > > diff --git a/drivers/block/rnbd/rnbd-srv.c b/drivers/block/rnbd/rnbd-srv.c > index 0fb94843a495..1b71cb2a885d 100644 > --- a/drivers/block/rnbd/rnbd-srv.c > +++ b/drivers/block/rnbd/rnbd-srv.c > @@ -148,7 +148,8 @@ static int process_rdma(struct rtrs_srv *sess, > /* Generate bio with pages pointing to the rdma buffer */ > bio = rnbd_bio_map_kern(data, sess_dev->rnbd_dev->ibd_bio_set, datalen, GFP_KERNEL); > if (IS_ERR(bio)) { > - rnbd_srv_err(sess_dev, "Failed to generate bio, err: %ld\n", PTR_ERR(bio)); > + err = PTR_ERR(bio); > + rnbd_srv_err(sess_dev, "Failed to generate bio, err: %ld\n", err); > goto sess_dev_put; > } > > Ah, I see what you mean. Thanks for the fix! Best, Brooke Basile
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