net/smc: fix suppressed return code

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 <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index d790c43c473f2a5881d572d11a74067e3ae878f6..2b19863f7171b0acb27d76d1e99f62939c22722a 100644 (file)
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -1615,8 +1615,11 @@ 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 */