firmware: imx-dsp: Fix an error handling path in imx_dsp_setup_channels()

[ Upstream commit e527adfb9b7d9d05a4577c116519e59a2bda4b05 ]

If mbox_request_channel_byname() fails, the memory allocated a few lines
above still need to be freed before going to the error handling path.

Fixes: 046326989a18 ("firmware: imx: Save channel name for further use")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/firmware/imx/imx-dsp.c b/drivers/firmware/imx/imx-dsp.c
index a6c06d7476c328ef7e166ac809fd304ce2faa059..1f410809d3ee4bec0594c9e98141d2535ff7e5ff 100644 (file)
--- a/drivers/firmware/imx/imx-dsp.c
+++ b/drivers/firmware/imx/imx-dsp.c
@@ -115,6 +115,7 @@ static int imx_dsp_setup_channels(struct imx_dsp_ipc *dsp_ipc)
                dsp_chan->idx = i % 2;
                dsp_chan->ch = mbox_request_channel_byname(cl, chan_name);
                if (IS_ERR(dsp_chan->ch)) {
+                       kfree(dsp_chan->name);
                        ret = PTR_ERR(dsp_chan->ch);
                        if (ret != -EPROBE_DEFER)
                                dev_err(dev, "Failed to request mbox chan %s ret %d\n",