From: Karsten Graul Date: Fri, 23 Oct 2020 18:48:29 +0000 (+0200) Subject: net/smc: fix suppressed return code X-Git-Tag: v5.9.3~25 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=bddce770def13fc2f19715f658a7f9dceb1de80e;p=users%2Fdwmw2%2Flinux.git net/smc: fix suppressed return code [ Upstream commit 96d6fded958d971a3695009e0ed43aca6c598283 ] The patch that repaired the invalid return code in smcd_new_buf_create() missed to take care of errno ENOSPC which has a special meaning that no more DMBEs can be registered on the device. Fix that by keeping this errno value during the translation of the return code. Fixes: 6b1bbf94ab36 ("net/smc: fix invalid return code in smcd_new_buf_create()") Signed-off-by: Karsten Graul Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index 59cc99fec2a25..efa65ec5e686c 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -1616,8 +1616,11 @@ static struct smc_buf_desc *smcd_new_buf_create(struct smc_link_group *lgr, rc = smc_ism_register_dmb(lgr, bufsize, buf_desc); if (rc) { kfree(buf_desc); - return (rc == -ENOMEM) ? ERR_PTR(-EAGAIN) : - ERR_PTR(-EIO); + if (rc == -ENOMEM) + return ERR_PTR(-EAGAIN); + if (rc == -ENOSPC) + return ERR_PTR(-ENOSPC); + return ERR_PTR(-EIO); } buf_desc->pages = virt_to_page(buf_desc->cpu_addr); /* CDC header stored in buf. So, pretend it was smaller */