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media: i2c: hi846: Fix memory leak in hi846_parse_dt()

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[ Upstream commit 80113026d4 ]

If any of the checks related to the supported link frequencies fail, then
the V4L2 fwnode resources don't get released before returning, which leads
to a memleak. Fix this by properly freeing the V4L2 fwnode data in a
designated label.

Fixes: e8c0882685 ("media: i2c: add driver for the SK Hynix Hi-846 8M pixel camera")
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Reviewed-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Rafael Mendonca
2022-09-18 23:12:51 -03:00
committed by Greg Kroah-Hartman
parent 5459eaca15
commit 4368730678
1 changed files with 10 additions and 4 deletions
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14
drivers/media/i2c/hi846.c
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@@ -2008,22 +2008,24 @@ static int hi846_parse_dt(struct hi846 *hi846, struct device *dev)
bus_cfg.bus.mipi_csi2.num_data_lanes != 4) {
dev_err(dev, "number of CSI2 data lanes %d is not supported",
bus_cfg.bus.mipi_csi2.num_data_lanes);
v4l2_fwnode_endpoint_free(&bus_cfg);
return -EINVAL;
ret = -EINVAL;
goto check_hwcfg_error;
}
hi846->nr_lanes = bus_cfg.bus.mipi_csi2.num_data_lanes;
if (!bus_cfg.nr_of_link_frequencies) {
dev_err(dev, "link-frequency property not found in DT\n");
return -EINVAL;
ret = -EINVAL;
goto check_hwcfg_error;
}
/* Check that link frequences for all the modes are in device tree */
fq = hi846_check_link_freqs(hi846, &bus_cfg);
if (fq) {
dev_err(dev, "Link frequency of %lld is not supported\n", fq);
return -EINVAL;
ret = -EINVAL;
goto check_hwcfg_error;
}
v4l2_fwnode_endpoint_free(&bus_cfg);
@@ -2044,6 +2046,10 @@ static int hi846_parse_dt(struct hi846 *hi846, struct device *dev)
}
return 0;
check_hwcfg_error:
v4l2_fwnode_endpoint_free(&bus_cfg);
return ret;
}
static int hi846_probe(struct i2c_client *client)