[U-Boot] [PATCH v2 23/78] net: tsec: Fix memory leak in error path

Mario Six mario.six at gdsys.cc
Wed Dec 13 07:18:51 UTC 2017


tsec_initialize allocates a private driver structure using malloc.
Should the memory allocation of this private structure fail, the
function execution is aborted with a return 0, but the previously
allocated device structure is never freed, hence leaked.

Free the device structure in the error case.

Signed-off-by: Mario Six <mario.six at gdsys.cc>
---

v1 -> v2:
None

---
 drivers/net/tsec.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c
index 071595218e..44140fb037 100644
--- a/drivers/net/tsec.c
+++ b/drivers/net/tsec.c
@@ -701,8 +701,10 @@ static int tsec_initialize(bd_t *bis, struct tsec_info_struct *tsec_info)

 	priv = (struct tsec_private *)malloc(sizeof(*priv));

-	if (!priv)
+	if (!priv) {
+		free(dev);
 		return 0;
+	}

 	priv->regs = tsec_info->regs;
 	priv->phyregs_sgmii = tsec_info->miiregs_sgmii;
--
2.13.6



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