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Arnd Bergmann 418c85ea45 gpu: ipu-v3: prg: avoid possible array underflow

[ Upstream commit 746d024c32 ]

gcc-8 reports that we access an array with a negative index
in an error case:

drivers/gpu/ipu-v3/ipu-prg.c: In function 'ipu_prg_channel_disable':
drivers/gpu/ipu-v3/ipu-prg.c:252:43: error: array subscript -22 is below array bounds of 'struct ipu_prg_channel[3]' [-Werror=array-bounds]

This moves the range check in front of the first time that
variable gets used.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-05-30 07:52:15 +02:00

ipu-common.c

gpu: ipu-v3: Allow channel burst locking on i.MX6 only

2017-10-11 10:45:06 +02:00

ipu-cpmem.c

gpu: ipu-v3: Add support for double read/write reduction

2017-06-08 08:57:18 +02:00

ipu-csi.c

gpu: ipu-v3: export ipu_csi_set_downsize

2017-02-17 08:04:27 +01:00

ipu-dc.c

gpu: ipu-v3: remove IRQ dance on DC channel disable