Thread (3 messages) flat view 3 messages, 3 authors, 2021-03-24
STALE1968d

[PATCH] octeontx2-af: Fix memory leak of object buf

From: Colin King <hidden>
Date: 2021-03-23 12:33:36
Also in: lkml, netdev
Subsystem: marvell octeontx2 rvu admin function driver, networking drivers, the rest · Maintainers: Sunil Goutham, Ratheesh Kannoth, Geetha sowjanya, Subbaraya Sundeep, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

From: Colin Ian King <redacted>

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 <redacted>
---
 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 8ec17ee72b5d..9bf8eaabf9ab 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
@@ -253,8 +253,10 @@ 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++)
-- 
2.30.2
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