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| author | Dan Carpenter <error27@gmail.com> | 2023-04-06 11:55:31 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-07-14 14:53:19 +0200 |
| commit | c20ecf7bb6153149b81a9277eda23398957656f2 (patch) | |
| tree | cd212870c5db9019fc8353020405111025d99553 /io_uring/uring_cmd.c | |
| parent | 911476ef3c585da9fdf156fd7aaa7455455daf76 (diff) | |
iommu/sva: Fix signedness bug in iommu_sva_alloc_pasid()
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: 1a14bf0fc7ed ("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>
Diffstat (limited to 'io_uring/uring_cmd.c')
0 files changed, 0 insertions, 0 deletions