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media: dvb-frontends: fix a memory leak bug

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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 <wenwen@cs.uga.edu>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Wenwen Wang 2019-08-17 04:04:04 -03:00 committed by Mauro Carvalho Chehab
parent 8c3d3cdbd5
commit 2f6451ed8b
1 changed files with 3 additions and 1 deletions
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4
drivers/media/dvb-frontends/cx24117.c
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@ -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);