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[PATCH 1/5] lightnvm: handle submit_io failure

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The device ->submit_io() callback might fail to submit I/O to device.
In that case, the nvm_submit_ppa function should not wait for
completion. Instead return the ->submit_io() error.

Signed-off-by: Matias Bjørling <m@bjorling.me>
---
 drivers/lightnvm/core.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 0dc9a80..c2ef53a 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -351,6 +351,11 @@ int nvm_submit_ppa(struct nvm_dev *dev, struct ppa_addr *ppa, int nr_ppas,
 	nvm_generic_to_addr_mode(dev, &rqd);
 
 	ret = dev->ops->submit_io(dev, &rqd);
+	if (ret) {
+		nvm_free_rqd_ppalist(dev, &rqd);
+		bio_put(bio);
+		return ret;
+	}
 
 	/* Prevent hang_check timer from firing at us during very long I/O */
 	hang_check = sysctl_hung_task_timeout_secs;
-- 
2.1.4

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[PATCH 0/5] Fixes to LightNVM Matias Bjørling <m@bjorling.me> - 2016-04-05 17:00 +0200
  [PATCH 4/5] lightnvm: move block fold outside of get_bb_tbl() Matias Bjørling <m@bjorling.me> - 2016-04-05 17:00 +0200
    Re: [PATCH 4/5] lightnvm: move block fold outside of get_bb_tbl() Johannes Thumshirn <jthumshirn@suse.de> - 2016-04-05 17:20 +0200
  [PATCH 1/5] lightnvm: handle submit_io failure Matias Bjørling <m@bjorling.me> - 2016-04-05 17:00 +0200
    Re: [PATCH 1/5] lightnvm: handle submit_io failure Johannes Thumshirn <jthumshirn@suse.de> - 2016-04-05 17:10 +0200

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