Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.9 157/757] hwmon: (w83627ehf) Fix a resource leak in probe | Date | Tue, 27 Oct 2020 14:46:47 +0100 |
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From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit 18360b33a071e5883250fd1e04bfdeff8c3887a3 ]
Smatch has a new check for resource leaks which found a bug in probe:
drivers/hwmon/w83627ehf.c:2417 w83627ehf_probe() warn: 'res->start' not released on lines: 2412.
We need to clean up if devm_hwmon_device_register_with_info() fails.
Fixes: 266cd5835947 ("hwmon: (w83627ehf) convert to with_info interface") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Dr. David Alan Gilbert <linux@treblig.org> Link: https://lore.kernel.org/r/20200921125212.GA1128194@mwanda Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/hwmon/w83627ehf.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index 5a5120121e507..3964ceab2817c 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -1951,8 +1951,12 @@ static int w83627ehf_probe(struct platform_device *pdev) data, &w83627ehf_chip_info, w83627ehf_groups); + if (IS_ERR(hwmon_dev)) { + err = PTR_ERR(hwmon_dev); + goto exit_release; + } - return PTR_ERR_OR_ZERO(hwmon_dev); + return 0; exit_release: release_region(res->start, IOREGION_LENGTH); -- 2.25.1
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