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authorYang Yingliang <yangyingliang@huawei.com>2022-11-17 10:06:36 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-11-23 21:57:07 +0300
commit7b51161696e803fd5f9ad55b20a64c2df313f95c (patch)
tree37611e368b1feed63b0163a3f824fdf7e76e4592 /drivers/firmware
parent3127a86a3702bd3a2ff43503d49919d666739ae8 (diff)
downloadlinux-7b51161696e803fd5f9ad55b20a64c2df313f95c.tar.xz
firmware: raspberrypi: fix possible memory leak in rpi_firmware_probe()
In rpi_firmware_probe(), if mbox_request_channel() fails, the 'fw' will not be freed through rpi_firmware_delete(), fix this leak by calling kfree() in the error path. Fixes: 1e7c57355a3b ("firmware: raspberrypi: Keep count of all consumers") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20221117070636.3849773-1-yangyingliang@huawei.com Acked-by: Joel Savitz <jsavitz@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/firmware')
-rw-r--r--drivers/firmware/raspberrypi.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c
index 4b8978b254f9..dba315f675bc 100644
--- a/drivers/firmware/raspberrypi.c
+++ b/drivers/firmware/raspberrypi.c
@@ -272,6 +272,7 @@ static int rpi_firmware_probe(struct platform_device *pdev)
int ret = PTR_ERR(fw->chan);
if (ret != -EPROBE_DEFER)
dev_err(dev, "Failed to get mbox channel: %d\n", ret);
+ kfree(fw);
return ret;
}