From 8120bd469f5525da229953c1197f2b826c0109f4 Mon Sep 17 00:00:00 2001
From: Robert-Ionut Alexa <robert-ionut.alexa@nxp.com>
Date: Fri, 23 Apr 2021 12:01:51 +0300
Subject: [PATCH] soc: fsl: dpaa2-console: free buffer before returning from dpaa2_console_read
Git-commit: 8120bd469f5525da229953c1197f2b826c0109f4
Patch-mainline: v5.16-rc1
References: git-fixes stable-5.14.19
Free the kbuf buffer before returning from the dpaa2_console_read()
function. The variable no longer goes out of scope, leaking the storage
it points to.
Fixes: c93349d8c170 ("soc: fsl: add DPAA2 console support")
Signed-off-by: Robert-Ionut Alexa <robert-ionut.alexa@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/soc/fsl/dpaa2-console.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/soc/fsl/dpaa2-console.c b/drivers/soc/fsl/dpaa2-console.c
index 27243f706f37..53917410f2bd 100644
--- a/drivers/soc/fsl/dpaa2-console.c
+++ b/drivers/soc/fsl/dpaa2-console.c
@@ -231,6 +231,7 @@ static ssize_t dpaa2_console_read(struct file *fp, char __user *buf,
cd->cur_ptr += bytes;
written += bytes;
+ kfree(kbuf);
return written;
err_free_buf:
--
2.26.2