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Date:   Fri, 22 Mar 2019 12:15:32 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 5.0 113/238] nvmem: core: dont check the return value of notifier chain call

5.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Bartosz Golaszewski <bgolaszewski@...libre.com>

commit f4853e1c321edb48af229ad5ac85076790d34968 upstream.

blocking_notifier_call_chain() returns the value returned by the last
registered callback. A positive return value doesn't indicate an error
and an nvmem device should correctly register irrespective of any
notifier callback failures. Drop the retval check.

Fixes: bee1138bea15 ("nvmem: add a notifier chain")
Cc: stable@...r.kernel.org
Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/nvmem/core.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -686,9 +686,7 @@ struct nvmem_device *nvmem_register(cons
 	if (rval)
 		goto err_remove_cells;
 
-	rval = blocking_notifier_call_chain(&nvmem_notifier, NVMEM_ADD, nvmem);
-	if (rval)
-		goto err_remove_cells;
+	blocking_notifier_call_chain(&nvmem_notifier, NVMEM_ADD, nvmem);
 
 	return nvmem;
 


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