[PATCH 5.15 102/183] firmware: imx-dsp: Fix an error handling path in imx_dsp_setup_channels()

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5.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>

[ 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@xxxxxxxxxx>
Reviewed-by: Daniel Baluta <daniel.baluta@xxxxxxx>
Signed-off-by: Shawn Guo <shawnguo@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/firmware/imx/imx-dsp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/firmware/imx/imx-dsp.c b/drivers/firmware/imx/imx-dsp.c
index a6c06d7476c32..1f410809d3ee4 100644
--- 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",
-- 
2.40.1






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