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linux/drivers/media/platform/qcom
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Arnd Bergmann e057d12dae media: camss: csiphy-3ph: avoid undefined behavior 
[ Upstream commit 05fb9ace34 ]

Marking a case of the switch statement as unreachable means the
compiler treats it as undefined behavior, which is then caught by
an objtool warning:

drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.o: warning: objtool: csiphy_lanes_enable() falls through to next function csiphy_lanes_disable()

Instead of simply continuing execution at a random place of the
driver, print a warning and return from to the caller, which
makes it possible to understand what happens and avoids the
warning.

Fixes: 53655d2a0f ("media: camss: csiphy-3ph: add support for SM8250 CSI DPHY")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2023-03-10 09:29:02 +01:00
..
camss media: camss: csiphy-3ph: avoid undefined behavior 2023-03-10 09:29:02 +01:00
venus venus: pm_helpers: Fix error check in vcodec_domains_get() 2022-10-25 10:38:56 +03:00
Kconfig media: platform/*/Kconfig: make manufacturer menus more uniform 2022-03-18 05:58:35 +01:00
Makefile media: platform: Create vendor/{Makefile,Kconfig} files 2022-03-18 05:58:35 +01:00