| From 69da080df629269f265902b7a4588a4ce689e3f2 Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Fri, 23 Apr 2021 12:01:51 +0300 |
| Subject: soc: fsl: dpaa2-console: free buffer before returning from |
| dpaa2_console_read |
| |
| From: Robert-Ionut Alexa <robert-ionut.alexa@nxp.com> |
| |
| [ Upstream commit 8120bd469f5525da229953c1197f2b826c0109f4 ] |
| |
| 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> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| 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 27243f706f376..53917410f2bdb 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: |
| -- |
| 2.33.0 |
| |
