iommu/sva: Fix signedness bug in iommu_sva_alloc_pasid()
[ Upstream commit c20ecf7b ] The ida_alloc_range() function returns negative error codes on error. On success it returns values in the min to max range (inclusive). It never returns more then INT_MAX even if "max" is higher. It never returns values in the 0 to (min - 1) range. The bug is that "min" is an unsigned int so negative error codes will be promoted to high positive values errors treated as success. Fixes: 1a14bf0f ("iommu/sva: Use GFP_KERNEL for pasid allocation") Signed-off-by:Dan Carpenter <error27@gmail.com> Reviewed-by:
Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/6b32095d-7491-4ebb-a850-12e96209eaaf@kili.mountain Signed-off-by:
Joerg Roedel <jroedel@suse.de> Signed-off-by:
Sasha Levin <sashal@kernel.org>
parent
52367a23
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