Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.19 0914/1157] rpmsg: Fix possible refcount leak in rpmsg_register_device_override() | Date | Mon, 15 Aug 2022 20:04:30 +0200 |
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From: Hangyu Hua <hbh25y@gmail.com>
[ Upstream commit d7bd416d35121c95fe47330e09a5c04adbc5f928 ]
rpmsg_register_device_override need to call put_device to free vch when driver_set_override fails.
Fix this by adding a put_device() to the error path.
Fixes: bb17d110cbf2 ("rpmsg: Fix calling device_lock() on non-initialized device") Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Hangyu Hua <hbh25y@gmail.com> Link: https://lore.kernel.org/r/20220624024120.11576-1-hbh25y@gmail.com Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/rpmsg/rpmsg_core.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c index 290c1f02da10..5a47cad89fdc 100644 --- a/drivers/rpmsg/rpmsg_core.c +++ b/drivers/rpmsg/rpmsg_core.c @@ -618,6 +618,7 @@ int rpmsg_register_device_override(struct rpmsg_device *rpdev, strlen(driver_override)); if (ret) { dev_err(dev, "device_set_override failed: %d\n", ret); + put_device(dev); return ret; } } -- 2.35.1
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