diff options
| author | Ryan Salsamendi <rsalsamendi@hotmail.com> | 2017-06-30 17:29:37 -0700 |
|---|---|---|
| committer | Nico Huber <nico.h@gmx.de> | 2017-07-03 10:33:16 +0000 |
| commit | fa0725dead0fdc7e9330e77c42ff4ed4b36a89c4 (patch) | |
| tree | 95f4af78e21bf1e8a07ab6d27d0224206721c406 /src/northbridge/intel/haswell/gma.c | |
| parent | 889ce9c91ecabb40f079111b22124560c55be4e6 (diff) | |
northbridge/intel/haswell: Fix undefined behavior
Fix reports found by undefined behavior sanitizer. Left shifting an int
where the right operand is >= the width of the type is undefined. Add
UL suffix since it's safe for unsigned types.
Change-Id: If2d34e4f05494c17bf9b9dec113b8f6863214e56
Signed-off-by: Ryan Salsamendi <rsalsamendi@hotmail.com>
Reviewed-on: https://review.coreboot.org/20447
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'src/northbridge/intel/haswell/gma.c')
| -rw-r--r-- | src/northbridge/intel/haswell/gma.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/northbridge/intel/haswell/gma.c b/src/northbridge/intel/haswell/gma.c index f22ff48707..75f3b7a944 100644 --- a/src/northbridge/intel/haswell/gma.c +++ b/src/northbridge/intel/haswell/gma.c @@ -252,13 +252,13 @@ static void gma_pm_init_pre_vbios(struct device *dev) gtt_write_regs(haswell_gt_setup); /* Wait for Mailbox Ready */ - gtt_poll(0x138124, (1 << 31), (0 << 31)); + gtt_poll(0x138124, (1UL << 31), (0UL << 31)); /* Mailbox Data - RC6 VIDS */ gtt_write(0x138128, 0x00000000); /* Mailbox Command */ gtt_write(0x138124, 0x80000004); /* Wait for Mailbox Ready */ - gtt_poll(0x138124, (1 << 31), (0 << 31)); + gtt_poll(0x138124, (1UL << 31), (0UL << 31)); /* Enable PM Interrupts */ gtt_write(GEN6_PMIER, GEN6_PM_MBOX_EVENT | GEN6_PM_THERMAL_EVENT | |