[PATCH 5.11 207/254] octeontx2-af: Fix memory leak of object buf

From: Greg Kroah-Hartman
Date: Mon Mar 29 2021 - 05:01:56 EST


From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

[ Upstream commit 9e0a537d06fc36861e4f78d0a7df1fe2b3592714 ]

Currently the error return path when lfs fails to allocate is not free'ing
the memory allocated to buf. Fix this by adding the missing kfree.

Addresses-Coverity: ("Resource leak")
Fixes: f7884097141b ("octeontx2-af: Formatting debugfs entry rsrc_alloc.")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Acked-by: Sunil Goutham <sgoutham@xxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
index ea1e520b6552..0488651a68d0 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
@@ -169,8 +169,10 @@ static ssize_t rvu_dbg_rsrc_attach_status(struct file *filp,
return -ENOSPC;

lfs = kzalloc(lf_str_size, GFP_KERNEL);
- if (!lfs)
+ if (!lfs) {
+ kfree(buf);
return -ENOMEM;
+ }
off += scnprintf(&buf[off], buf_size - 1 - off, "%-*s", lf_str_size,
"pcifunc");
for (index = 0; index < BLK_COUNT; index++)
--
2.30.1