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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: 6b1bbf94ab ("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>
This commit is contained in:
Karsten Graul 2020-10-23 20:48:29 +02:00 committed by Jakub Kicinski
parent 4a9baf45fd
commit 96d6fded95
1 changed files with 5 additions and 2 deletions
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7
net/smc/smc_core.c
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@ -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 */