[4.4,044/159] nvmem: core: return error code instead of NULL from nvmem_device_get

Message ID 20191122100737.184105147@linuxfoundation.org
State New
Headers show
Series
  • Untitled series #25167
Related show

Commit Message

Greg Kroah-Hartman Nov. 22, 2019, 10:27 a.m.
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>


[ Upstream commit ca6ac25cecf0e740d7cc8e03e0ebbf8acbeca3df ]

nvmem_device_get() should return ERR_PTR() on error or valid pointer
on success, but one of the code path seems to return NULL, so fix it.

Reported-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Sasha Levin <sashal@kernel.org>

---
 drivers/nvmem/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.20.1

Patch

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 931cc33e46f02..5d6d1bb4f1106 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -457,7 +457,7 @@  static struct nvmem_device *nvmem_find(const char *name)
 	d = bus_find_device(&nvmem_bus_type, NULL, (void *)name, nvmem_match);
 
 	if (!d)
-		return NULL;
+		return ERR_PTR(-ENOENT);
 
 	return to_nvmem_device(d);
 }