This is a note to let you know that I've just added the patch titled
media: i2c: hi846: Fix memory leak in hi846_parse_dt()
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
media-i2c-hi846-fix-memory-leak-in-hi846_parse_dt.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1090b8fb04c0afcae94d74ebd8424d8136f985fd
Author: Rafael Mendonca <rafaelmendsr@xxxxxxxxx>
Date: Sun Sep 18 23:12:51 2022 -0300
media: i2c: hi846: Fix memory leak in hi846_parse_dt()
[ Upstream commit 80113026d415e27483669db7a88b548d1ec3d3d1 ]
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: e8c0882685f9 ("media: i2c: add driver for the SK Hynix Hi-846 8M pixel camera")
Signed-off-by: Rafael Mendonca <rafaelmendsr@xxxxxxxxx>
Reviewed-by: Tommaso Merciai <tommaso.merciai@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Martin Kepplinger <martink@xxxxxxxxx>
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/media/i2c/hi846.c b/drivers/media/i2c/hi846.c
index c5b69823f257..7c61873b7198 100644
--- a/drivers/media/i2c/hi846.c
+++ b/drivers/media/i2c/hi846.c
@@ -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)
