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soc: fsl: dpaa2-console: free buffer before returning from dpaa2_console_read

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[ Upstream commit 8120bd469f ]

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: c93349d8c1 ("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>
This commit is contained in:
Robert-Ionut Alexa 2021-04-23 12:01:51 +03:00 • committed by Greg Kroah-Hartman
commit 41968262bb
1 changed files with 1 additions and 0 deletions
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drivers/soc/fsl/dpaa2-console.c
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@ -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: