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hv: fix 'Function return value potentially unused'

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MISRA-C requires that if the return value of a function call is
assigned to a local variable, this value shall be used in all paths.

This patch moves the variable assignment right before the moment that
the variable is used.

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Shiqing Gao
2018-11-29 15:04:38 +08:00
committed by wenlingz
parent e0260b4496
commit db3c5746f3
6 changed files with 30 additions and 33 deletions
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2
hypervisor/arch/x86/vtd.c
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@@ -365,7 +365,9 @@ static void dmar_enable_translation(struct dmar_drhd_rt *dmar_unit)
iommu_write32(dmar_unit, DMAR_GCMD_REG, dmar_unit->gcmd);
/* 32-bit register */
dmar_wait_completion(dmar_unit, DMAR_GSTS_REG, DMA_GSTS_TES, false, &status);
#if DBG_IOMMU
status = iommu_read32(dmar_unit, DMAR_GSTS_REG);
#endif
}
spinlock_release(&(dmar_unit->lock));