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Subject: media: dvb-frontends: fix a memory leak bug
Author: Wenwen Wang <wen...@cs.uga.edu>
Date: Sat Aug 17 04:04:04 2019 -0300
In cx24117_load_firmware(), 'buf' is allocated through kmalloc() to hold
the firmware. However, if i2c_transfer() fails, it is not deallocated,
leading to a memory leak bug.
Signed-off-by: Wenwen Wang <wen...@cs.uga.edu>
Signed-off-by: Sean Young <s...@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+sams...@kernel.org>
drivers/media/dvb-frontends/cx24117.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/drivers/media/dvb-frontends/cx24117.c
b/drivers/media/dvb-frontends/cx24117.c
index 42697a5999f7..9fccc906d85a 100644
--- a/drivers/media/dvb-frontends/cx24117.c
+++ b/drivers/media/dvb-frontends/cx24117.c
@@ -619,8 +619,10 @@ static int cx24117_load_firmware(struct dvb_frontend *fe,
/* send fw */
ret = i2c_transfer(state->priv->i2c, &msg, 1);
- if (ret < 0)
+ if (ret < 0) {
+ kfree(buf);
return ret;
+ }
kfree(buf);
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