From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
stable@vger.kernel.org
Subject: [PATCH] nvmem: core: fix the return value check when calling the notifier chain
Date: Thu, 14 Feb 2019 17:23:49 +0100 [thread overview]
Message-ID: <20190214162349.22740-1-brgl@bgdev.pl> (raw)
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
blocking_notifier_call_chain() returns the value returned by the last
registered callback. A positive return value doesn't indicate an error
so check only if it's negative.
Fixes: bee1138bea15 ("nvmem: add a notifier chain")
Cc: stable@vger.kernel.org
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
drivers/nvmem/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index f7301bb4ef3b..a3bed2d9aec7 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -687,7 +687,7 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
goto err_remove_cells;
rval = blocking_notifier_call_chain(&nvmem_notifier, NVMEM_ADD, nvmem);
- if (rval)
+ if (rval < 0)
goto err_remove_cells;
return nvmem;
--
2.20.1
next reply other threads:[~2019-02-14 16:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-14 16:23 Bartosz Golaszewski [this message]
2019-02-15 9:28 ` [PATCH] nvmem: core: fix the return value check when calling the notifier chain Srinivas Kandagatla
2019-02-15 9:41 ` Bartosz Golaszewski
2019-02-15 10:26 ` Srinivas Kandagatla
2019-02-15 10:43 ` Bartosz Golaszewski
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