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| author | Christian Mauderer <christian.mauderer@embedded-brains.de> | 2021-05-28 16:58:49 +0200 |
|---|---|---|
| committer | Christian Mauderer <christian.mauderer@embedded-brains.de> | 2021-06-21 16:11:36 +0200 |
| commit | 5ad17be9307907eadc844ed8cd8f036baffddd67 (patch) | |
| tree | 759504f984ef845621846efa64b30f65a5eb513c /cpukit/score/cpu/arm | |
| parent | bsps/i386: Update calibration of TSC to be more accurate (diff) | |
| download | rtems-5ad17be9307907eadc844ed8cd8f036baffddd67.tar.bz2 | |
cpu/armv7m: Avoid regions with negative size
Don't initialze regions that have a negative size (for example due to a
wrong calculation).
Update #4450
Diffstat (limited to 'cpukit/score/cpu/arm')
| -rw-r--r-- | cpukit/score/cpu/arm/include/rtems/score/armv7m.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/cpukit/score/cpu/arm/include/rtems/score/armv7m.h b/cpukit/score/cpu/arm/include/rtems/score/armv7m.h index 8f926e826a..a5eaaef418 100644 --- a/cpukit/score/cpu/arm/include/rtems/score/armv7m.h +++ b/cpukit/score/cpu/arm/include/rtems/score/armv7m.h @@ -656,7 +656,7 @@ static inline void _ARMV7M_MPU_Set_region( RTEMS_OBFUSCATE_VARIABLE(end); size = (uintptr_t) end - (uintptr_t) begin; - if ( size > 0 ) { + if ( (uintptr_t) end > (uintptr_t) begin ) { rbar = (uintptr_t) begin | region | ARMV7M_MPU_RBAR_VALID; rasr |= _ARMV7M_MPU_Get_region_size(size); } else { |