[PATCH AUTOSEL 5.4 005/459] drm/qxl: Complete exception handling in qxl_device_init()
From: Sasha Levin <sashal@kernel.org>
Date: 2020-02-14 16:02:08
Also in:
dri-devel, lkml, stable
Subsystem:
drm driver for qxl virtual gpu, drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
Dave Airlie, Gerd Hoffmann, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
From: Markus Elfring <redacted>
[ Upstream commit dbe3ad61dcebc49fe3efca70a0f752a95b4600f2 ]
A coccicheck run provided information like the following.
drivers/gpu/drm/qxl/qxl_kms.c:295:1-7: ERROR: missing iounmap;
ioremap on line 178 and execution via conditional on line 185
Generated by: scripts/coccinelle/free/iounmap.cocci
A jump target was specified in an if branch. The corresponding function
call did not release the desired system resource then.
Thus use the label “rom_unmap” instead to fix the exception handling
for this function implementation.
Fixes: 5043348a4969ae1661c008efe929abd0d76e3792 ("drm: qxl: Fix error handling at qxl_device_init")
Signed-off-by: Markus Elfring <redacted>
Link: http://patchwork.freedesktop.org/patch/msgid/5e5ef9c4-4d85-3c93-cf28-42cfcb5b0649@web.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/qxl/qxl_kms.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
index 611cbe7aee690..bfc1631093e9b 100644
--- a/drivers/gpu/drm/qxl/qxl_kms.c
+++ b/drivers/gpu/drm/qxl/qxl_kms.c@@ -184,7 +184,7 @@ int qxl_device_init(struct qxl_device *qdev, if (!qxl_check_device(qdev)) { r = -ENODEV; - goto surface_mapping_free; + goto rom_unmap; } r = qxl_bo_init(qdev);
--
2.20.1
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