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| author |   Joerg Roedel <jroedel@suse.de> | 2017-06-16 16:09:57 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2017-06-22 12:54:20 +0200 |
| commit | 151b09031a76ba6b6b83f94953074d6f10aa30b3 (patch) | |
| tree | d659ea3eec114633725cb6987e0e7021d64783a9 /drivers/iommu/amd_iommu_init.c | |
| parent | iommu/amd: Add new init-state IOMMU_CMDLINE_DISABLED (diff) | |
| download | linux-dev-151b09031a76ba6b6b83f94953074d6f10aa30b3.tar.xz linux-dev-151b09031a76ba6b6b83f94953074d6f10aa30b3.zip | |
iommu/amd: Check for error states first in iommu_go_to_state()
Check if we are in an error state already before calling
into state_next().
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd_iommu_init.c')
| -rw-r--r-- | drivers/iommu/amd_iommu_init.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index df9ec85271f5..a6b81a05a0d1 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -2467,14 +2467,14 @@ static int __init state_next(void) static int __init iommu_go_to_state(enum iommu_init_state state) { - int ret = 0; + int ret = -EINVAL; while (init_state != state) { - ret = state_next(); if (init_state == IOMMU_NOT_FOUND || init_state == IOMMU_INIT_ERROR || init_state == IOMMU_CMDLINE_DISABLED) break; + ret = state_next(); } return ret; |