From: Alexey Khoroshilov <khoroshilov@ispras.ru>
To: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
Alexander Shiyan <shc_work@mail.ru>
Cc: Alexey Khoroshilov <khoroshilov@ispras.ru>,
linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org,
ldv-project@linuxtesting.org
Subject: [PATCH] video: clps711x-fb: release disp device node in probe()
Date: Sat, 3 Nov 2018 01:23:43 +0300 [thread overview]
Message-ID: <1541197423-31560-1-git-send-email-khoroshilov@ispras.ru> (raw)
clps711x_fb_probe() increments refcnt of disp device node by
of_parse_phandle() and leaves it undecremented on both
successful and error paths.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
---
drivers/video/fbdev/clps711x-fb.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/clps711x-fb.c b/drivers/video/fbdev/clps711x-fb.c
index ff561073ee4e..42f909618f04 100644
--- a/drivers/video/fbdev/clps711x-fb.c
+++ b/drivers/video/fbdev/clps711x-fb.c
@@ -287,14 +287,17 @@ static int clps711x_fb_probe(struct platform_device *pdev)
}
ret = of_get_fb_videomode(disp, &cfb->mode, OF_USE_NATIVE_MODE);
- if (ret)
+ if (ret) {
+ of_node_put(disp);
goto out_fb_release;
+ }
of_property_read_u32(disp, "ac-prescale", &cfb->ac_prescale);
cfb->cmap_invert = of_property_read_bool(disp, "cmap-invert");
ret = of_property_read_u32(disp, "bits-per-pixel",
&info->var.bits_per_pixel);
+ of_node_put(disp);
if (ret)
goto out_fb_release;
--
2.7.4
next reply other threads:[~2018-11-02 22:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20181102222440epcas1p3ccba6957ba132ddbbc6e32d6ff912062@epcas1p3.samsung.com>
2018-11-02 22:23 ` Alexey Khoroshilov [this message]
2018-12-20 16:42 ` [PATCH] video: clps711x-fb: release disp device node in probe() Bartlomiej Zolnierkiewicz
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