From: Colin King <colin.king@canonical.com>
To: VMware Graphics <linux-graphics-maintainer@vmware.com>,
Thomas Hellstrom <thellstrom@vmware.com>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
dri-devel@lists.freedesktop.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] drm/vmwgfx: fix memory leak when too many retries have occurred
Date: Fri, 21 Jun 2019 22:35:34 +0000 [thread overview]
Message-ID: <20190621223534.14283-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
Currently when too many retries have occurred there is a memory
leak on the allocation for reply on the error return path. Fix
this by kfree'ing reply before returning.
Addresses-Coverity: ("Resource leak")
Fixes: a9cd9c044aa9 ("drm/vmwgfx: Add a check to handle host message failure")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/gpu/drm/vmwgfx/vmwgfx_msg.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
index 8b9270f31409..8b61f16f50cf 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
@@ -301,8 +301,10 @@ static int vmw_recv_msg(struct rpc_channel *channel, void **msg,
break;
}
- if (retries = RETRIES)
+ if (retries = RETRIES) {
+ kfree(reply);
return -EINVAL;
+ }
*msg_len = reply_len;
*msg = reply;
--
2.20.1
next reply other threads:[~2019-06-21 22:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-21 22:35 Colin King [this message]
2019-06-24 16:10 ` [PATCH] drm/vmwgfx: fix memory leak when too many retries have occurred Deepak Singh Rawat
2019-06-24 16:13 ` Colin Ian King
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