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Colin Ian King 64918e3f71 drm/arm: fix unintentional integer overflow on left shift

[ Upstream commit 5f368ddea6 ]

Shifting the integer value 1 is evaluated using 32-bit arithmetic
and then used in an expression that expects a long value leads to
a potential integer overflow. Fix this by using the BIT macro to
perform the shift to avoid the overflow.

Addresses-Coverity: ("Unintentional integer overflow")
Fixes: ad49f8602f ("drm/arm: Add support for Mali Display Processors")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200618100400.11464-1-colin.king@canonical.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-08-19 08:14:54 +02:00

hdlcd_crtc.c

drm/arm/hdlcd: Allow a bit of clock tolerance

2019-06-25 11:35:58 +08:00

hdlcd_drv.c

drm/arm/hdlcd: Reject atomic commits that disable only the plane

2018-07-31 16:31:50 +01:00

hdlcd_drv.h

drm/arm/hdlcd: Use drm_fb_cma_fbdev_init/fini()

2018-07-31 16:31:50 +01:00

hdlcd_regs.h

drm: Add support for ARM's HDLCD controller.